🌱 Chapter 4: Biological Classification of Plants Posted by By admin February 27, 2026 🌱 Chapter 4: Biological Classification of Plants 🌱 Chapter 4: Biological Classification of Plants 1 / 170 1. Classifying organisms based on their structure, reproduction, nature, nutrition, etc., into different groups is called: (a) Classification (b) Taxonomy (c) Grouping (d) Systematics 🧠 Explanation: Organisms are classified into groups based on characteristics like structure, function, nutrition, etc. 🧠 Explanation: Organisms are classified into groups based on characteristics like structure, function, nutrition, etc. 2 / 170 2. The study of principles and procedures of classification is called: (a) Nomenclature (b) Classification (c) Taxonomy (d) Both 1 and 2 🧠 Explanation: Taxonomy deals with identifying, naming, and classifying organisms. 🧠 Explanation: Taxonomy deals with identifying, naming, and classifying organisms. 3 / 170 3. In how many kingdoms are organisms classified? (a) Two (b) Three (c) Four (d) Five 🧠 Explanation: The Five Kingdom Classification by Whittaker includes: Monera, Protista, Fungi, Plantae, and Animalia. 🧠 Explanation: The Five Kingdom Classification by Whittaker includes: Monera, Protista, Fungi, Plantae, and Animalia. 4 / 170 4. Who wrote the book "Systema Naturae"? (a) Eichler (b) Linnaeus (c) Rendu (d) Bentham 🧠 Explanation: Carl Linnaeus wrote Systema Naturae, a foundational book in taxonomy. 🧠 Explanation: Carl Linnaeus wrote Systema Naturae, a foundational book in taxonomy. 5 / 170 5. The basic and smallest taxonomic unit in biological classification is: (a) Class (b) Family (c) Order (d) Species 🧠 Explanation: Species is the smallest taxonomic rank, representing a group of similar organisms capable of interbreeding. 🧠 Explanation: Species is the smallest taxonomic rank, representing a group of similar organisms capable of interbreeding. 6 / 170 6. What is a taxon? (a) Below family (b) A group in the classification system (c) Method to describe species (d) Relation between genus and family 🧠 Explanation: A taxon is any group of organisms given a formal name, like kingdom, phylum, genus, etc. 🧠 Explanation: A taxon is any group of organisms given a formal name, like kingdom, phylum, genus, etc. 7 / 170 7. Who proposed the Five Kingdom Classification? (a) R.H. Whittaker (b) Carl Woese (c) Haeckel (d) Linnaeus 🧠 Explanation: Whittaker proposed the Five Kingdom Classification in 1969. 🧠 Explanation: Whittaker proposed the Five Kingdom Classification in 1969. 8 / 170 8. In Whittaker’s Five Kingdom Classification, where are prokaryotes placed? (a) Protista (b) Monera (c) Fungi (d) Plantae 🧠 Explanation: Monera includes all prokaryotic organisms (e.g., bacteria, cyanobacteria). 🧠 Explanation: Monera includes all prokaryotic organisms (e.g., bacteria, cyanobacteria). 9 / 170 9. Binomial nomenclature consists of how many words? (a) Only one name (b) Two words: Genus and Species (c) Three words: Kingdom, Genus, Species (d) Four words: Phylum, Class, Order, Species 🧠 Explanation: Binomial nomenclature consists of Genus (capitalized) and Species (small) — e.g., Homo sapiens. 🧠 Explanation: Binomial nomenclature consists of Genus (capitalized) and Species (small) — e.g., Homo sapiens. 10 / 170 10. In binomial nomenclature, the two-word scientific names are: (a) Genus and Class (b) Order and Genus (c) Genus and Species (d) Phylum and Class 🧠 Explanation: Scientific names are written using the Genus and Species names. 🧠 Explanation: Scientific names are written using the Genus and Species names. 11 / 170 11. Who is considered the Father of Taxonomy and modern classification? (a) Aristotle (b) Bhartiya (c) Linnaeus (d) Darwin 🧠 Explanation: Carl Linnaeus is regarded as the Father of Taxonomy. 🧠 Explanation: Carl Linnaeus is regarded as the Father of Taxonomy. 12 / 170 12. The scientist who gave the scientific names of plants is called: (a) Identifier (b) Taxonomist (c) Classifier (d) Botanist 🧠 Explanation: A Taxonomist assigns scientific names based on classification rules. 🧠 Explanation: A Taxonomist assigns scientific names based on classification rules. 13 / 170 13. In the Five Kingdoms, how many include only unicellular organisms? (a) 1 (b) 2 (c) 3 (d) 4 🧠 Explanation: The kingdoms Monera and Protista contain unicellular organisms. 🧠 Explanation: The kingdoms Monera and Protista contain unicellular organisms. 14 / 170 14. Who wrote the book "Species Plantarum"? (a) Aristotle (b) Linnaeus (c) Theophrastus (d) Hooker 🧠 Explanation: Species Plantarum was written by Carl Linnaeus in 1753, laying the foundation of binomial nomenclature. 🧠 Explanation: Species Plantarum was written by Carl Linnaeus in 1753, laying the foundation of binomial nomenclature. 15 / 170 15. What kind of nutrition is found in Monera kingdom organisms? (a) Autotrophic (b) Heterotrophic (c) Both Autotrophic and Heterotrophic (d) Symbiotic 🧠 Explanation: Organisms in Monera (e.g., bacteria) can have autotrophic (photosynthesis/chemosynthesis) or heterotrophic modes of nutrition. 🧠 Explanation: Organisms in Monera (e.g., bacteria) can have autotrophic (photosynthesis/chemosynthesis) or heterotrophic modes of nutrition. 16 / 170 16. Which of the following are included in Protista? (a) Chrysophytes (b) Dinoflagellates (c) Euglenoids (d) All of these 🧠 Explanation: All listed options are Protista — single-celled eukaryotes. 17 / 170 17. Which of the following taxonomic hierarchies is correct? (a) Species → Genus → Order → Kingdom (b) Species → Genus → Order → Class (c) Species → Genus → Family → Order (d) Genus → Species → Order → Family 🧠 Explanation: Correct taxonomic hierarchy: Species < Genus < Family < Order < Class < Phylum < Kingdom 🧠 Explanation: Correct taxonomic hierarchy: Species < Genus < Family < Order < Class < Phylum < Kingdom 18 / 170 18. Which Greek word is the term taxonomy derived from? (a) Taxis (b) Nomos (c) Both a and b (d) None of these 🧠 Explanation: Taxis means arrangement; Nomos means law — thus Taxonomy = Law of Arrangement. 🧠 Explanation: Taxis means arrangement; Nomos means law — thus Taxonomy = Law of Arrangement. 19 / 170 19. Which group of organisms is considered the link between living and nonliving? (a) Virus (b) Fungi (c) Protozoa (d) Algae 🧠 Explanation: Viruses are non-living outside a host but behave as living inside — thus, considered link between living and non-living. 🧠 Explanation: Viruses are non-living outside a host but behave as living inside — thus, considered link between living and non-living. 20 / 170 20. Which group contains the highest number of organisms? (a) Algae (b) Fungi (c) Bacteria (d) Virus 🧠 Explanation: Bacteria (Kingdom Monera) are the most abundant and widespread. 🧠 Explanation: Bacteria (Kingdom Monera) are the most abundant and widespread. 21 / 170 21. Select the correct statement: 1. Based on characteristics, organisms are placed into groups — called taxonomic hierarchy. 2. Taxonomic studies begin with observation and identification. BOTH CORRRECT BOTH CORRRECT 22 / 170 22. All plants (including algae and mosses) are: (a) Unicellular autotrophs (b) Multicellular autotrophs (c) Heterotrophs (d) Mixotrophs 🧠 Explanation: Plants, including algae and mosses, are multicellular and carry out photosynthesis. 🧠 Explanation: Plants, including algae and mosses, are multicellular and carry out photosynthesis. 23 / 170 23. In Whittaker’s classification, which kingdom includes cyanobacteria? (a) Monera (b) Protista (c) Plantae (d) Fungi 🧠 Explanation: Cyanobacteria (blue-green algae) are prokaryotes and belong to Monera. 🧠 Explanation: Cyanobacteria (blue-green algae) are prokaryotes and belong to Monera. 24 / 170 25. If classification is done based on chromosome number, it is called: (a) Phylogenetic (b) Cytotaxonomy (c) Chemotaxonomy (d) Numerical taxonomy 🧠 Explanation: Cytotaxonomy uses chromosome number, structure, and behavior in classification. 🧠 Explanation: Cytotaxonomy uses chromosome number, structure, and behavior in classification. 25 / 170 26. Groups with similar characteristics are placed into: (a) Order (b) Class (c) Phylum (d) Kingdom 🧠 Explanation: Organisms with similar families are grouped into an Order. 🧠 Explanation: Organisms with similar families are grouped into an Order. 26 / 170 24. Who wrote "Genera Plantarum"? (a) Bentham (b) Engler and Prantl (c) Linnaeus (d) Bentham and Hooker 🧠 Explanation: Bentham and Hooker proposed a detailed system of plant classification in their book Genera Plantarum. 🧠 Explanation: Bentham and Hooker proposed a detailed system of plant classification in their book Genera Plantarum. 27 / 170 27. Who introduced the three-domain classification system? (a) Linnaeus (b) Whittaker (c) Woese (d) Eichler 🧠 Explanation: Carl Woese proposed the Three-Domain System: Archaea, Bacteria, and Eukarya. 🧠 Explanation: Carl Woese proposed the Three-Domain System: Archaea, Bacteria, and Eukarya. 28 / 170 28. Which form of Amoeba proteus is written correctly? (a) Amoeba proteus 🧠 Explanation: In binomial nomenclature, the genus (Amoeba) is capitalized and species (proteus) is lowercase — both italicized 29 / 170 29. Who used embryonic characters in plant classification? (a) Engler and Prantl (b) Bentham and Hooker (c) Eichler (d) Linnaeus 🧠 Explanation: Bentham and Hooker considered embryological features (e.g., seed development) in classification 🧠 Explanation: Bentham and Hooker considered embryological features (e.g., seed development) in classification 30 / 170 30. Which plant is included in cryptogams? (a) Gymnosperm (b) Ferns (c) Angiosperm (d) Phanerogams 🧠 Explanation: Cryptogams are non-flowering plants, e.g., algae, mosses, ferns. 🧠 Explanation: Cryptogams are non-flowering plants, e.g., algae, mosses, ferns. 31 / 170 31. Which is included in non-seed plants (apuspavi)? (a) Pteridophytes (b) Gymnosperms (c) Angiosperms (d) All of these 🧠 Explanation: Pteridophytes reproduce via spores, not seeds. 🧠 Explanation: Pteridophytes reproduce via spores, not seeds. 32 / 170 32. Which of the following belong to Pteridophytes? (a) Selaginella (b) Cycas (c) Rhizopus (d) All of these 🧠 Explanation: Selaginella is a pteridophyte; others do not belong to this group. 🧠 Explanation: Selaginella is a pteridophyte; others do not belong to this group. 33 / 170 33. Which of the following are included in angiosperms? (a) Naked seeds (b) Covered seeds (c) Both a and b (d) Neither a nor b 🧠 Explanation: Angiosperms have seeds enclosed within fruits (ovaries), unlike gymnosperms. 🧠 Explanation: Angiosperms have seeds enclosed within fruits (ovaries), unlike gymnosperms. 34 / 170 34. Which of the following is a characteristic of algae from the Thallophyta group? (a) True roots, stem, and leaves are not present, and the plant body is not divided into root, stem, and leaves. (b) The plant body is called a thallus. (c) Grows in moist or aquatic habitats. (d) All of these 🧠 Explanation: Thallophyta includes algae which have a thallus-like structure and no differentiation into root, stem, or leaves. They typically grow in water or moist areas. 🧠 Explanation: Thallophyta includes algae which have a thallus-like structure and no differentiation into root, stem, or leaves. They typically grow in water or moist areas. 35 / 170 35. How do algae reproduce in unfavorable conditions? (a) Fragmentation (b) Spore formation (c) Dormant zygote (d) All of these 🧠 Explanation: Algae can reproduce asexually via fragmentation or spores and sexually via dormant zygotes during harsh conditions. 🧠 Explanation: Algae can reproduce asexually via fragmentation or spores and sexually via dormant zygotes during harsh conditions. 36 / 170 36. Which of the following is a member of the Thallophyta group? (a) Algae (b) Cycas (c) Moss (d) Fern 🧠 Explanation: Thallophyta includes simple, non-vascular plants like algae, but moss and ferns belong to Bryophyta and Pteridophyta, respectively. 🧠 Explanation: Thallophyta includes simple, non-vascular plants like algae, but moss and ferns belong to Bryophyta and Pteridophyta, respectively. 37 / 170 37. What are filamentous algae called? (a) Unicellular (b) Multicellular (c) Colonial (d) Branched 🧠 Explanation: Filamentous algae consist of multiple cells arranged in filaments; hence, they are multicellular. 🧠 Explanation: Filamentous algae consist of multiple cells arranged in filaments; hence, they are multicellular. 38 / 170 39. Which is not a distinguishing feature of algae? (a) Similar to higher plants (b) Possess chlorophyll (c) Found in aquatic areas (d) Their body is differentiated into root, stem, and leaves 🧠 Explanation: Algae do not have differentiated plant parts; they have thallus bodies. 🧠 Explanation: Algae do not have differentiated plant parts; they have thallus bodies. 39 / 170 38. Choose the correct statement(s): 1. Algae can be unicellular. 2. Algae can be multicellular. (d) Both 1 and 2 (d) Both 1 and 2 (d) Both 1 and 2 (d) Both 1 and 2 40 / 170 40. Which of the following algae matches correctly? 1. Chlorophyceae – Green algae 2. Phaeophyceae – Brown algae 3. Rhodophyceae – Red algae Chlorophyceae → Green Phaeophyceae → Brown Rhodophyceae → Red Chlorophyceae → Green Phaeophyceae → Brown Rhodophyceae → Red Chlorophyceae → Green Phaeophyceae → Brown Rhodophyceae → Red Chlorophyceae → Green Phaeophyceae → Brown Rhodophyceae → Red 41 / 170 41. Which algae are known to form "kelp forests"? (a) Chlorophyceae (b) Rhodophyceae (c) Phaeophyceae (d) Cyanophyceae 🧠 Explanation: Brown algae (Phaeophyceae) like kelps are large and form dense underwater forests. 🧠 Explanation: Brown algae (Phaeophyceae) like kelps are large and form dense underwater forests. 42 / 170 42. Which algal class contains flagellated members? (a) Rhodophyceae (b) Chlorophyceae (c) Phaeophyceae (d) All of these 🧠 Explanation: Green algae like Chlamydomonas have flagella. 🧠 Explanation: Green algae like Chlamydomonas have flagella. 43 / 170 43. What are the cell walls of algae made of? (a) Pectin (b) Cellulose (c) Silica (d) Hemicellulose 🧠 Explanation: The cell wall of most algae is made of cellulose, though other substances can be present in specific types. 🧠 Explanation: The cell wall of most algae is made of cellulose, though other substances can be present in specific types. 44 / 170 44. Algae reproduce by which methods? (a) Asexual (b) Sexual (c) Vegetative (d) All of these 🧠 Explanation: Algae reproduce vegetatively (fragmentation), asexually (zoospores), and sexually (fusion of gametes) 🧠 Explanation: Algae reproduce vegetatively (fragmentation), asexually (zoospores), and sexually (fusion of gametes) 45 / 170 45. Which of the following is a green algae? (a) Spirogyra (b) Volvox (c) Ulothrix (d) All of these 🧠 Explanation: These are all examples of Chlorophyceae (green algae). 🧠 Explanation: These are all examples of Chlorophyceae (green algae). 46 / 170 46. Which is not a green alga? (a) Spirogyra (b) Ulothrix (c) Volvox (d) Polysiphonia 🧠 Explanation: Polysiphonia is a red alga (Rhodophyceae). 🧠 Explanation: Polysiphonia is a red alga (Rhodophyceae). 47 / 170 47. What are unicellular algae with silica cell walls called? (a) Diatoms (b) Red algae (c) Green algae (d) Blue-green algae 🧠 Explanation: Diatoms are unicellular algae with silica shells (used in filters and polishes). 🧠 Explanation: Diatoms are unicellular algae with silica shells (used in filters and polishes). 48 / 170 48. Which of the following is not a red alga? (a) Gelidium (b) Gracilaria (c) Porphyra (d) Ulothrix 🧠 Explanation: Ulothrix is a green alga; others are red algae. 🧠 Explanation: Ulothrix is a green alga; others are red algae. 49 / 170 49. Why is the Sargasso Sea named? (a) Due to brown algae (b) Due to green algae (c) Due to plankton (d) Due to sea grasses 🧠 Explanation: The Sargasso Sea is named after the floating brown alga Sargassum. 🧠 Explanation: The Sargasso Sea is named after the floating brown alga Sargassum. 50 / 170 50. Which algae is the most abundant in the ocean? (a) Red algae (b) Green algae (c) Blue-green algae (d) Diatoms 🧠 Explanation: Diatoms are abundant and form the base of the marine food chain. 🧠 Explanation: Diatoms are abundant and form the base of the marine food chain. 51 / 170 51. Iodine is obtained from which source? (a) Red algae (b) Blue-green algae (c) Green algae (d) All of these 🧠 Explanation: Red algae, such as Laminaria, are rich in iodine and are harvested for it. 🧠 Explanation: Red algae, such as Laminaria, are rich in iodine and are harvested for it. 52 / 170 52. In which group of algae is the stored food called Floridean starch? (a) Chlorophyceae (b) Phaeophyceae (c) Rhodophyceae (d) All of these 🧠 Explanation: Red algae (Rhodophyceae) store food as Floridean starch, not starch. 🧠 Explanation: Red algae (Rhodophyceae) store food as Floridean starch, not starch. 53 / 170 53. Which chemical, helpful in blood clotting ("Sodium Alginate"), is obtained from which algae? (a) Laminaria (b) Fucus (c) Macrocystis (d) Sargassum 🧠 Explanation: Sodium alginate, used in medical and food industries, is extracted from Laminaria, a type of brown algae. 🧠 Explanation: Sodium alginate, used in medical and food industries, is extracted from Laminaria, a type of brown algae. 54 / 170 54. Which of the following diseases is not caused by eating contaminated seafood? (a) Cholera (b) Goiter or Thyroid (c) Typhoid (d) Scurvy 🧠 Explanation: Scurvy is caused by Vitamin C deficiency, not from contaminated seafood. 🧠 Explanation: Scurvy is caused by Vitamin C deficiency, not from contaminated seafood. 55 / 170 55. Red algae are red due to the presence of which pigment? (a) Moss (b) Algae (c) Cyanobacteria (d) Euglena 🧠 Explanation: Red algae are red because of the pigment phycoerythrin present in algae, not moss or bacteria. 🧠 Explanation: Red algae are red because of the pigment phycoerythrin present in algae, not moss or bacteria. 56 / 170 56. Which of the following is a red algae? (a) Porphyra (b) Gelidium (c) Polysiphonia (d) All of these 🧠 Explanation: All the options listed are examples of red algae (Rhodophyceae). 🧠 Explanation: All the options listed are examples of red algae (Rhodophyceae). 57 / 170 57. From which red algae is Agar-Agar used in artificial growth media obtained? (a) Gelidium (b) Gracilaria (c) Porphyra (d) Both (a) and (b) 🧠 Explanation: Agar-agar, used in microbiological culture media, is obtained from Gelidium and Gracilaria. 🧠 Explanation: Agar-agar, used in microbiological culture media, is obtained from Gelidium and Gracilaria. 58 / 170 58. Agar-agar is obtained from: (a) Red algae (b) Green algae (c) Blue-green algae (d) All of these 🧠 Explanation: Agar is a product of red algae, especially Gelidium. 🧠 Explanation: Agar is a product of red algae, especially Gelidium. 59 / 170 59. Which of the following is a unicellular algae? (a) Spirogyra (b) Chlamydomonas (c) Ulothrix (d) Alva 🧠 Explanation: Chlamydomonas is a unicellular green alga, while the others are multicellular. 🧠 Explanation: Chlamydomonas is a unicellular green alga, while the others are multicellular. 60 / 170 60. How is algae used as food? (a) As salad (b) As curry (c) As protein (d) All of these 🧠 Explanation: Algae like Spirulina and Chlorella are used as salad, in curries, and as protein supplements. 🧠 Explanation: Algae like Spirulina and Chlorella are used as salad, in curries, and as protein supplements. 61 / 170 61. Which of the following is used as a biofertilizer? (a) Cyanobacteria (b) Blue-green algae (c) Algae (d) All of these 🧠 Explanation: Blue-green algae (Cyanobacteria), like Nostoc and Anabaena, are used as biofertilizers in rice fields. 🧠 Explanation: Blue-green algae (Cyanobacteria), like Nostoc and Anabaena, are used as biofertilizers in rice fields. 62 / 170 62. Which of the following is not a member of the blue-green algae (Cyanobacteria)? (a) Anabaena (b) Spirulina (c) Nostoc (d) Rivularia 🧠 Explanation: Spirulina is not a true cyanobacterium; it is used as a health supplement. 🧠 Explanation: Spirulina is not a true cyanobacterium; it is used as a health supplement. 63 / 170 63. Which of the following is a correct match? 1. Phaeophyceae – Marine 2. Rhodophyceae – Dictyota 3. Chlorophyceae – Aquatic and Terrestrial 4. Rhodophyceae – Phycobiliprotein Phaeophyceae – Marine Chlorophyceae – Found in both aquatic and terrestrial habitats Rhodophyceae – Contains phycobiliprotein pigment ❌ Dictyota is not a red alga (it's brown). DD DDDD DDDDDD DDDDDDDD 64 / 170 64. Match the organism with the correct category: 1. Spirogyra 2. Euglena 3. Ulothrix 4. Alva Which of the above are algae? (a) 1 and 3 (a) 1 and 3 (a) 1 and 3 (a) 1 and 3 � Explanation: Spirogyra and Ulothrix are green algae. Euglena is a protist, and Alva (Ulva) is algae but the question focuses on specific types. � Explanation: Spirogyra and Ulothrix are green algae. Euglena is a protist, and Alva (Ulva) is algae but the question focuses on specific types. 65 / 170 65. Which of the following substances is obtained from red algae? (a) Algin (b) Carrageenan (c) Iodine (d) Tannin 🧠 Explanation: Carrageenan, used as a thickener in foods, is extracted from red algae. 🧠 Explanation: Carrageenan, used as a thickener in foods, is extracted from red algae. 66 / 170 66. Lichens that are sensitive to air pollution are good indicators of? (a) Algae and Bacteria (b) Algae and Fungi (c) Fungi and Cyanobacteria (d) Fungi and Moss 🧠 Explanation: Lichens are a symbiotic association of fungi and algae, and they are highly sensitive to air pollution. 🧠 Explanation: Lichens are a symbiotic association of fungi and algae, and they are highly sensitive to air pollution. 67 / 170 68. Which plant group is a good indicator of air pollution? (a) Moss (b) Ferns (c) Algae (d) Lichens 🧠 Explanation: Lichens do not grow in polluted air, so their presence indicates clean air. 🧠 Explanation: Lichens do not grow in polluted air, so their presence indicates clean air. 68 / 170 67. Lichens are also called as: (a) Symbionts (b) Parasites (c) Saprophytes (d) All of these 🧠 Explanation: Lichens live in a mutualistic relationship, hence they are symbionts. 🧠 Explanation: Lichens live in a mutualistic relationship, hence they are symbionts. 69 / 170 69. Which among the following absorbs the highest amount of SO₂ pollution? (a) Moss (b) Fern (c) Lichen (d) Algae 🧠 Explanation: Lichens absorb pollutants like sulfur dioxide (SO₂) and are used as bioindicators. 🧠 Explanation: Lichens absorb pollutants like sulfur dioxide (SO₂) and are used as bioindicators. 70 / 170 70. What is the term for lichen that grows on bark of trees? (a) Corticolous (b) Saxicolous (c) Terricolous (d) Epiphytic 71 / 170 71. What are lichens called that grow on the rocky surface? (a) Corticolous (b) Saxicolous (c) Terricolous (d) Epiphytic 72 / 170 72. Turmeric is obtained from which plant part? (a) Stem (b) Rhizome (c) Root (d) Leaf 🧠 Explanation: Turmeric is a rhizome, an underground stem used as a spice. 🧠 Explanation: Turmeric is a rhizome, an underground stem used as a spice. 73 / 170 73. People of Japan eat which type of algae as vegetable? (a) Porphyra (b) Rosella (c) Endocladia (d) Ceramium 🧠 Explanation: Porphyra (called Nori in Japan) is widely consumed in sushi and other dishes. 🧠 Explanation: Porphyra (called Nori in Japan) is widely consumed in sushi and other dishes. 74 / 170 74. Lichen is used to treat which neurological condition? (a) Tuberculosis (b) Rosella (c) Epilepsy (d) Asthma 🧠 Explanation: Some traditional systems used lichens in herbal treatment for epilepsy. 🧠 Explanation: Some traditional systems used lichens in herbal treatment for epilepsy. 75 / 170 75. Which of the following reproduces by spores? (a) Gymnosperms (b) Algae (c) Dicots (d) Angiosperms 🧠 Explanation: Algae reproduce asexually through spores, whereas seed plants reproduce via seeds. 🧠 Explanation: Algae reproduce asexually through spores, whereas seed plants reproduce via seeds. 76 / 170 76. Which of the following is not a characteristic of bryophytes? (a) Root (b) Rhizoids (c) Moist environment (d) Chlorophyll 🧠 Explanation: Bryophytes lack true roots; instead, they have rhizoids for attachment and absorption. 🧠 Explanation: Bryophytes lack true roots; instead, they have rhizoids for attachment and absorption. 77 / 170 77. Which of the following plant groups lacks xylem and phloem? (a) Bryophytes (b) Pteridophytes (c) Gymnosperms (d) Angiosperms 🧠 Explanation: Bryophytes are non-vascular; they lack conducting tissues like xylem and phloem. 🧠 Explanation: Bryophytes are non-vascular; they lack conducting tissues like xylem and phloem. 78 / 170 78. In which algae is Fucoxanthin pigment found? (a) Green algae (b) Brown algae (c) Red algae (d) All of these 🧠 Explanation: Fucoxanthin is a brown pigment characteristic of brown algae (Phaeophyceae). 🧠 Explanation: Fucoxanthin is a brown pigment characteristic of brown algae (Phaeophyceae). 79 / 170 79. What is special about bryophytes? (a) They grow in shade (b) They grow near water (c) They don’t grow on land (d) All of the above 🧠 Explanation: Bryophytes require moist environments to complete reproduction. 🧠 Explanation: Bryophytes require moist environments to complete reproduction. 80 / 170 80. Bryophytes are intermediate between: (a) Algae and Ferns (b) Moss and Ferns (c) Liverworts and Moss (d) None of these 🧠 Explanation: Bryophytes represent a link between algae (aquatic) and ferns (terrestrial vascular plants). 🧠 Explanation: Bryophytes represent a link between algae (aquatic) and ferns (terrestrial vascular plants). 81 / 170 81. Which group of plants is called amphibians of the plant kingdom? (a) Algae (b) Bryophytes (c) Pteridophytes (d) Gymnosperms 🧠 Explanation: Bryophytes need both land and water, hence called amphibians of the plant kingdom. 🧠 Explanation: Bryophytes need both land and water, hence called amphibians of the plant kingdom. 82 / 170 82. Rhizoids are found in: (a) Angiosperms (b) Gymnosperms (c) Bryophytes (d) Dicots 🧠 Explanation: Rhizoids are root-like structures found in non-vascular plants like bryophytes. 🧠 Explanation: Rhizoids are root-like structures found in non-vascular plants like bryophytes. 83 / 170 83. In bryophytes, the increase in age and thickness of outer tissues is called: (a) Moss (b) Thallus (c) Liverwort (d) Radicle 🧠 Explanation: Bryophytes have thalloid body without differentiation into true stems or roots. 🧠 Explanation: Bryophytes have thalloid body without differentiation into true stems or roots. 84 / 170 84. Which of the following is not true about liverworts? (a) They show alternation of generations (b) They have multicellular rhizoids (c) Their outer tissues show secondary growth (d) They are flat, thalloid and green 🧠 Explanation: Liverworts lack vascular tissues, hence do not show secondary growth. 🧠 Explanation: Liverworts lack vascular tissues, hence do not show secondary growth. 85 / 170 85. Which of the following is correctly matched? 1. Riccia and Marchantia – Liverwort 2. Funaria – Moss 3. Lycopodium – Fern ALL CORRECT 86 / 170 86. Which plant group is called vascular cryptogams? (a) Bryophytes (b) Pteridophytes (c) Algae (d) All of these 🧠 Explanation: Pteridophytes are the first vascular cryptogams, having xylem and phloem but no seeds. 🧠 Explanation: Pteridophytes are the first vascular cryptogams, having xylem and phloem but no seeds. 87 / 170 87. From an evolutionary perspective, which group is the first terrestrial vascular plant with xylem and phloem? (a) Angiosperms (b) Pteridophytes (c) Algae (d) Bryophytes 🧠 Explanation: Pteridophytes are the first land plants with vascular tissues for transport. 🧠 Explanation: Pteridophytes are the first land plants with vascular tissues for transport. 88 / 170 88. Which of the following is not included in Pteridophytes? (a) Selaginella (b) Psilotum (c) Bryophytes (d) Fern 🧠 Explanation: Bryophytes are non-vascular, while others are pteridophytes. 🧠 Explanation: Bryophytes are non-vascular, while others are pteridophytes. 89 / 170 89. In lichen, which of the following organisms lives in symbiosis? (a) Ceratophyllum (b) Penicillium (c) Nostoc (d) Puccinia 🧠 Explanation: Nostoc (a cyanobacterium) lives in symbiosis with fungi in lichens. 🧠 Explanation: Nostoc (a cyanobacterium) lives in symbiosis with fungi in lichens. 90 / 170 90. Marchantia, Fern, and Equisetum (Horse-tail) are examples of which plant group? (a) Pteridophyta (b) Bryophyta (c) Gymnosperm (d) Angiosperm Ferns and Equisetum are classic pteridophytes, and though Marchantia is a bryophyte, it's included here in error; the question seems to focus on vascular cryptogams like ferns and horsetail. Ferns and Equisetum are classic pteridophytes, and though Marchantia is a bryophyte, it's included here in error; the question seems to focus on vascular cryptogams like ferns and horsetail. 91 / 170 91. Which group of plants was the first to evolve seeds? (a) Algae (b) Bryophyta (c) Gymnosperms (d) Pteridophyta 🧠 Explanation: Gymnosperms were the first seed-bearing plants, unlike pteridophytes and bryophytes. 🧠 Explanation: Gymnosperms were the first seed-bearing plants, unlike pteridophytes and bryophytes. 92 / 170 92. Water ferns are widely used as green manure. This plant is - (a) Azolla (b) Marchantia (c) Salvinia (d) Selaginella Azolla, a water fern, has a symbiotic relationship with Anabaena (cyanobacteria) that fixes nitrogen, used in paddy fields. Azolla, a water fern, has a symbiotic relationship with Anabaena (cyanobacteria) that fixes nitrogen, used in paddy fields. 93 / 170 93. Which plant is used as a medicine in blood pressure? (a) Rauwolfia (b) Tea (c) Tulsi (d) Coffee 🧠 Explanation: Rauwolfia serpentina is used to treat high blood pressure; it contains the alkaloid reserpine. 🧠 Explanation: Rauwolfia serpentina is used to treat high blood pressure; it contains the alkaloid reserpine. 94 / 170 94. Due to the regenerative property of Bryophyllum, which type of propagation is observed? (a) Vegetative (b) Sexual (c) Asexual (d) Budding 🧠 Explanation: Bryophyllum reproduces through vegetative propagation using leaf notches. 🧠 Explanation: Bryophyllum reproduces through vegetative propagation using leaf notches. 95 / 170 95. Which gymnosperm plant is used as a stimulant drug? (a) Taxus baccata (b) Pinus (c) Cycas (d) Ephedra 🧠 Explanation: Ephedra produces ephedrine, used in medicines as a stimulant and decongestant. 🧠 Explanation: Ephedra produces ephedrine, used in medicines as a stimulant and decongestant. 96 / 170 97. Plants that reproduce via both vegetative and sexual methods and maintain alternation of generations are included in which group? (a) Pteridophyta (b) Algae (c) Gymnosperm Pteridophytes show alternation of generations and both vegetative and sexual reproduction. Pteridophytes show alternation of generations and both vegetative and sexual reproduction. 97 / 170 96. Which group has the highest chromosome number? (a) Algae (b) Bryophytes (c) Pteridophytes (d) Gymnosperms 🧠 Explanation: Many pteridophytes have very high chromosome numbers compared to other plant groups. 🧠 Explanation: Many pteridophytes have very high chromosome numbers compared to other plant groups. 98 / 170 98. Which of the following is NOT true about gymnosperms? (a) Gymnosperms have advanced body structures. (b) They produce naked seeds. (c) All pteridophyte features are found in gymnosperms. (d) They don't show vascular tissue. 🧠 Explanation: Gymnosperms DO have vascular tissues. Option (d) is incorrect. 🧠 Explanation: Gymnosperms DO have vascular tissues. Option (d) is incorrect. 99 / 170 99. Selaginella is - (a) Alga (b) Moss (c) Pteridophyte (d) Angiosperm 🧠 Explanation: Selaginella is a heterosporous pteridophyte, related to club mosses. 🧠 Explanation: Selaginella is a heterosporous pteridophyte, related to club mosses. 100 / 170 100. In which plant group do seeds form, but remain exposed and not enclosed in fruits? (a) Bryophytes (b) Pteridophytes (c) Angiosperms (d) Gymnosperms 🧠 Explanation: Gymnosperm means "naked seed" — seeds are not enclosed in a fruit. 🧠 Explanation: Gymnosperm means "naked seed" — seeds are not enclosed in a fruit. 101 / 170 101. Consider the following statements: 1. In gymnosperms, seeds form outside the ovary, not enclosed in fruits. 2. In angiosperms, flowers bear ovules inside ovaries. Both 1 and 2 are correct Both 1 and 2 are correct 🧠 Explanation: Both statements are accurate about gymnosperms and angiosperms respectively. 🧠 Explanation: Both statements are accurate about gymnosperms and angiosperms respectively. 102 / 170 102. Which plant has the longest leaves among all known plants? (a) Banana leaf (b) Victoria regia (c) Cycas (d) All are equal 🧠 Explanation: Cycas leaves can grow up to 3 meters long. 🧠 Explanation: Cycas leaves can grow up to 3 meters long. 103 / 170 103. Which plant has the largest seed and the heaviest woody cone? (a) Cycas (b) Pinus (c) Ginkgo (d) None of these 🧠 Explanation: Cycas produces the largest known plant ovule and massive seed cones. 🧠 Explanation: Cycas produces the largest known plant ovule and massive seed cones. 104 / 170 104. Which medium is required for fertilization in gymnosperms? (a) Air (b) Water (c) Wind (d) None 🧠 Explanation: Gymnosperms are mostly wind-pollinated, unlike bryophytes/pteridophytes that need water. 🧠 Explanation: Gymnosperms are mostly wind-pollinated, unlike bryophytes/pteridophytes that need water. 105 / 170 105. Which of the following is NOT included in Gymnosperms? (a) Pteridophyta (b) Gnetum (c) Ephedra (d) Cycas 🧠 Explanation: Pteridophyta is a separate group (vascular cryptogams), not a gymnosperm. 🧠 Explanation: Pteridophyta is a separate group (vascular cryptogams), not a gymnosperm. 106 / 170 107. What is the male cone of gymnosperm called? (a) Anther (b) Microsporangium (c) Strobilus (d) Cone flower 🧠 Explanation: Male reproductive structure in gymnosperms is strobilus, bearing microsporangia. 🧠 Explanation: Male reproductive structure in gymnosperms is strobilus, bearing microsporangia. 107 / 170 106. Choose the correct statement: 1. Tap root in Pinus comes from the radicle. 2. Adventitious root in Cycas comes from the stem. (d) Both 1 and 2 are correct (d) Both 1 and 2 are correct (d) Both 1 and 2 are correct Pinus develops tap roots from radicle, and Cycas develops adventitious roots from stem tissues. Pinus develops tap roots from radicle, and Cycas develops adventitious roots from stem tissues. 108 / 170 108. From which plant is resin obtained? (a) Cycas (b) Pinus (c) Ginkgo (d) Selaginella 🧠 Explanation: Resin is collected from Pinus trees (pine resin). 🧠 Explanation: Resin is collected from Pinus trees (pine resin). 109 / 170 109. Sago is obtained from which plant? (a) Cycas (b) Sunflower (c) Maize (d) Juniperus 🧠 Explanation: Sago is a starch extracted from the stem of Cycas revoluta. 🧠 Explanation: Sago is a starch extracted from the stem of Cycas revoluta. 110 / 170 110. Which of the following is a gymnosperm plant? (a) Peepal (b) Mango (c) Cycas (d) Banana 🧠 Explanation: Cycas is a gymnosperm, i.e., seed plant with naked seeds, no flowers. 🧠 Explanation: Cycas is a gymnosperm, i.e., seed plant with naked seeds, no flowers. 111 / 170 111. Which of the following is a living fossil? (a) Selaginella (b) Ginkgo (c) Pinus (d) Riccia 🧠 Explanation: Ginkgo biloba is a living fossil — it has remained unchanged for millions of years. 🧠 Explanation: Ginkgo biloba is a living fossil — it has remained unchanged for millions of years. 112 / 170 112. The largest ovule (seed) is found in - (a) Corn (b) Pine (c) Coconut (d) Cycas 🧠 Explanation: Cycas has the largest ovule and seed among seed plants. 🧠 Explanation: Cycas has the largest ovule and seed among seed plants. 113 / 170 113. Gymnosperms are also called “naked seed plants” because - They don't have true fruits. Their ovules are not enclosed by an ovary. SFFSF SFFSFSF SFSF SFFSF 114 / 170 114. Ephedrine (a medicine for asthma and cold) is obtained from which gymnosperm? (a) Cycas (b) Juniperus (c) Pinus (d) Ephedra 🧠 Explanation: Ephedra contains ephedrine, used as a bronchodilator and stimulant. 🧠 Explanation: Ephedra contains ephedrine, used as a bronchodilator and stimulant. 115 / 170 115. Why are gymnosperms called non-flowering plants? Because flowers are absent Because flowers are absent Because flowers are absent Because flowers are absent 116 / 170 116. Coralloid roots of Cycas are found in - (a) Dicots (b) Gymnosperms (c) Gnetum and Welwitschia (d) Angiosperms 🧠 Explanation: Cycas, a gymnosperm, develops coralloid roots containing cyanobacteria for nitrogen fixation. 🧠 Explanation: Cycas, a gymnosperm, develops coralloid roots containing cyanobacteria for nitrogen fixation. 117 / 170 117. In which group of gymnosperms are both heterospory and ligulate leaves found? (a) Ferns (b) Cycas (c) Selaginella (d) Gnetum 🧠 Explanation: Gnetum (a gymnosperm) shows heterospory and ligulate (leaflike) structures — it has similarities with angiosperms. 🧠 Explanation: Gnetum (a gymnosperm) shows heterospory and ligulate (leaflike) structures — it has similarities with angiosperms. 118 / 170 118. Which group has the tallest gymnosperm tree? (a) Cycas (b) Pteridophyta (c) Pinus (d) Angiosperm 🧠 Explanation: Pinus and Sequoia (both gymnosperms) can grow extremely tall — up to 100+ meters. 🧠 Explanation: Pinus and Sequoia (both gymnosperms) can grow extremely tall — up to 100+ meters. 119 / 170 119. Which of the following is NOT true about gymnosperms? 1. Their seeds are not enclosed in fruits. 2. They bear flowers. (b) 2 is incorrect (b) 2 is incorrect 🧠 Explanation: Gymnosperms do NOT bear flowers, making statement 2 incorrect. 🧠 Explanation: Gymnosperms do NOT bear flowers, making statement 2 incorrect. 120 / 170 120. Which plant group provides us with most of our food – fruits, vegetables, grains, etc.? (a) Gymnosperms (b) Angiosperms (c) Pteridophyta (d) Algae 🧠 Explanation: Most of our food crops come from angiosperms (flowering plants). 🧠 Explanation: Most of our food crops come from angiosperms (flowering plants). 121 / 170 121. What kind of alternation of generations is found in angiosperms? (a) Isomorphic (b) Heteromorphic (c) Isomorphic and Heteromorphic (d) None of these 🧠 Explanation: Angiosperms have heteromorphic alternation of generations — dominant sporophyte and reduced gametophyte. 🧠 Explanation: Angiosperms have heteromorphic alternation of generations — dominant sporophyte and reduced gametophyte. 122 / 170 122. Which of the following is NOT a feature of pteridophytes? (a) Alternation of generations (b) Seed formation (c) Vascular tissue (d) True root, stem, leaves 🧠 Explanation: Pteridophytes do not form seeds — they reproduce by spores. 🧠 Explanation: Pteridophytes do not form seeds — they reproduce by spores. 123 / 170 123. Which of the following combinations is correct for monocots? 1. One cotyledon 2. Parallel venation 3. Fibrous roots 1. One cotyledon 2. Parallel venation 3. Fibrous roots asdfafaafaf afafafafa afafafa 124 / 170 124. Which of the following is a correctly matched pair? (a) Teak – Gymnosperm (b) Cycas – Angiosperm (c) Pine – Gymnosperm (d) Apple – Pteridophyta 🧠 Explanation: Pine is a classic gymnosperm 🧠 Explanation: Pine is a classic gymnosperm 125 / 170 125. Which of the following is not correctly matched? (a) Mango – Common name (b) Mangifera indica – Scientific name (c) Guava – Tridax procumbens (d) Tea – Camellia sinensis Guava = Psidium guajava; Tridax procumbens is a weed, not guava. Guava = Psidium guajava; Tridax procumbens is a weed, not guava. 126 / 170 126. Which is a correct botanical or scientific name? afffaf afafaf afafaf afafa 127 / 170 127. Which of the following is not correctly matched? (a) Rice seed – Monocot (b) Wheat seed – Gram (chana) 🧠 Explanation: Wheat and gram are different: Wheat = monocot Gram (chana) = dicot They are not the same. 🧠 Explanation: Wheat and gram are different: Wheat = monocot Gram (chana) = dicot They are not the same. 128 / 170 128. What is the generic (scientific) name of mango? (a) Rhododendron (b) Ficus (c) Nicotiana (d) Mangifera 🧠 Explanation: Mango's scientific name is Mangifera indica — Mangifera is the genus. 🧠 Explanation: Mango's scientific name is Mangifera indica — Mangifera is the genus. 129 / 170 129. What is the botanical name of neem? (a) Azadirachta indica (b) Abrus precatorius (c) Citrus sinensis (d) Helianthus annuus 🧠 Explanation: Neem = Azadirachta indica Other options are sunflower, orange, etc. 🧠 Explanation: Neem = Azadirachta indica Other options are sunflower, orange, etc. 130 / 170 130. What is the botanical name of onion? (a) Solanum tuberosum (b) Solanum nigrum (c) Allium cepa (d) Solanum lycopersicum 🧠 Explanation: Onion is scientifically called Allium cepa. 🧠 Explanation: Onion is scientifically called Allium cepa. 131 / 170 131. Which of the following plants belongs to the cruciferous (mustard) family? (a) Malvaceae (b) Solanaceae (c) Linaceae (d) Brassicaceae 🧠 Explanation: Cruciferous or mustard family = Brassicaceae 🧠 Explanation: Cruciferous or mustard family = Brassicaceae 132 / 170 132. Which plant gives the maximum yield of fiber crops? (a) Corchorus (b) Solanum (c) Linum (d) Capsicum 🧠 Explanation: Corchorus (jute) is a major fiber-yielding crop. 🧠 Explanation: Corchorus (jute) is a major fiber-yielding crop. 133 / 170 133. Which of the following oilseed crops belongs to the Cruciferae family? (a) Malvaceae (b) Brassicaceae (c) Solanaceae (d) Linaceae 🧠 Explanation: Mustard (Brassica) is an oilseed crop in the Brassicaceae family 🧠 Explanation: Mustard (Brassica) is an oilseed crop in the Brassicaceae family 134 / 170 134. Which is the largest fruit? (a) Watermelon (b) Jackfruit (c) Pumpkin (d) Coconut 🧠 Explanation: Jackfruit is considered the largest fruit. 🧠 Explanation: Jackfruit is considered the largest fruit. 135 / 170 135. Which of the following is not a fiber-yielding plant? (a) Cotton (b) Kenaf (c) Hemp (d) Belladonna 🧠 Explanation: Belladonna is a medicinal plant, not used for fiber. 🧠 Explanation: Belladonna is a medicinal plant, not used for fiber. 136 / 170 136. From which part is cotton fiber obtained? (a) Pericarp (b) Seed coat (c) Perisperm (d) Mesocarp 🧠 Explanation: Cotton fibers are derived from the outer coat of seeds. 🧠 Explanation: Cotton fibers are derived from the outer coat of seeds. 137 / 170 137. Which types of diseases affect cotton? (a) Fungal stem rot (b) Bacterial wilt (c) Viral wilt (d) All of the above 🧠 Explanation: Cotton can be affected by fungal, bacterial, and viral diseases. 🧠 Explanation: Cotton can be affected by fungal, bacterial, and viral diseases. 138 / 170 138. Which of the following is not a root crop? (a) Yam (b) Beet (c) Sweet potato (d) Brinjal 🧠 Explanation: Brinjal (eggplant) is a fruit vegetable, not a root crop. 🧠 Explanation: Brinjal (eggplant) is a fruit vegetable, not a root crop. 139 / 170 139. Which part of Atropa belladonna contains the most alkaloids? (a) Leaves (b) Roots (c) Whole plant (d) Fruits 🧠 Explanation: Atropa belladonna has alkaloids throughout the plant — especially atropine. 🧠 Explanation: Atropa belladonna has alkaloids throughout the plant — especially atropine. 140 / 170 140. Which part of the flax plant yields the most fiber? (a) Root (b) Bark (c) Seed (d) Flower 🧠 Explanation: Flax fiber is extracted from the bast (bark) of the stem. 🧠 Explanation: Flax fiber is extracted from the bast (bark) of the stem. 141 / 170 141. Where is the aromatic plant Patchouli used in perfume obtained from? (a) Whole plant (b) Root (c) Leaves and flowers (d) Fruits 🧠 Explanation: Patchouli essential oil is extracted from the whole plant (especially leaves). 🧠 Explanation: Patchouli essential oil is extracted from the whole plant (especially leaves). 142 / 170 142. From which part is coconut oil obtained? (a) Endosperm (b) Pericarp (c) Seed coat (d) Bark 🧠 Explanation: Coconut oil is extracted from the dry endosperm (copra). 🧠 Explanation: Coconut oil is extracted from the dry endosperm (copra). 143 / 170 143. Which plant’s alkaloid ‘Reserpine’ is used to treat high blood pressure? (a) Digitalis (b) Rauwolfia (c) Belladonna (d) Datura 🧠 Explanation: Reserpine (used for hypertension) comes from Rauwolfia serpentina. 🧠 Explanation: Reserpine (used for hypertension) comes from Rauwolfia serpentina. 144 / 170 144. Which part of the plant is eaten in cauliflower? (a) Leaf (b) Flower bud (c) Fruit (d) Inflorescence axis 🧠 Explanation: The edible part of cauliflower is the immature flower buds 🧠 Explanation: The edible part of cauliflower is the immature flower buds 145 / 170 145. From which part of sugarcane is sugar obtained? (a) Flower (b) Seeds (c) Leaves (d) Stem 🧠 Explanation: Sugar is extracted from the juicy stem of sugarcane. 🧠 Explanation: Sugar is extracted from the juicy stem of sugarcane. 146 / 170 146. Which part of the rose plant is used to make perfume? (a) Flowers (b) Seeds (c) Leaves (d) Fruits 🧠 Explanation: Rose oil and perfume are extracted from the petals. 🧠 Explanation: Rose oil and perfume are extracted from the petals. 147 / 170 147. Which plant’s root yields the powder mixed with "talcum powder" (liquorice powder)? (a) Roots of Amla (b) Leaves of Henna (c) Roots of Liquorice (d) Seeds of Linseed 🧠 Explanation: Liquorice root is used in cosmetics and medicine. 🧠 Explanation: Liquorice root is used in cosmetics and medicine. 148 / 170 148. Edible mushrooms grow on - (a) Bark of tamarind (b) Bark of banyan (c) Bark of decaying plants (d) Bark of neem 🧠 Explanation: Mushrooms are saprophytic fungi, growing on decaying organic matter 🧠 Explanation: Mushrooms are saprophytic fungi, growing on decaying organic matter 149 / 170 149. Saffron spice is obtained from - (a) Flowers of Hibiscus (b) Roots of Curcuma (c) Stigma and style of Crocus sativus (d) Nepali plant Ephedra 🧠 Explanation: Saffron comes from the stigma and style of Crocus sativus flowers. 🧠 Explanation: Saffron comes from the stigma and style of Crocus sativus flowers. 150 / 170 150. From which seed is castor oil obtained? (a) Apple (b) Castor (c) Guava (d) Coconut 🧠 Explanation: Castor oil is derived from castor seeds (Ricinus communis) 🧠 Explanation: Castor oil is derived from castor seeds (Ricinus communis) 151 / 170 151. How is asafoetida (hing) obtained? (a) From taste of mango (b) From resin of roots (c) From fruits’ extract (d) From bark extract 🧠 Explanation: Asafoetida is an oleoresin collected from the roots of the plant. 🧠 Explanation: Asafoetida is an oleoresin collected from the roots of the plant. 152 / 170 152. Which of the following is a gum-yielding plant? (a) Asafoetida (b) Shilajit (c) Guggal (d) None of these 🧠 Explanation: Guggal is a gum-resin yielding plant, used in Ayurveda. 🧠 Explanation: Guggal is a gum-resin yielding plant, used in Ayurveda. 153 / 170 153. Beetroot appears red due to presence of - (a) Chlorophyll (b) Phycocyanin (c) Xanthophyll (d) Betalains 🧠 Explanation: The red color of beetroot comes from betalain pigments, not anthocyanins. 🧠 Explanation: The red color of beetroot comes from betalain pigments, not anthocyanins. 154 / 170 154. What causes bitterness in neem leaves? (a) Presence of Limonin (b) Presence of Azadirachtin (c) Presence of Catechin (d) Presence of Ephedrine 🧠 Explanation: Azadirachtin is a bitter compound in neem, also used as a pesticide. 🧠 Explanation: Azadirachtin is a bitter compound in neem, also used as a pesticide. 155 / 170 155. Where is latex obtained from? (a) From mature leaves (b) From fruits and latex tubes (c) From unripe fruits and latex tubes (d) From bark only 🧠 Explanation: Latex is mainly collected from unripe fruits via latex ducts. 🧠 Explanation: Latex is mainly collected from unripe fruits via latex ducts. 156 / 170 156. From which part of isabgol plant is it harvested? (a) From fruits (b) From bark (c) From seeds (d) From stem 🧠 Explanation: Isabgol (Psyllium husk) is obtained from the outer coating of seeds. 🧠 Explanation: Isabgol (Psyllium husk) is obtained from the outer coating of seeds. 157 / 170 157. Which part of rose plant is used in making perfume? (a) Flowers (b) Bark (c) Flowers including petals and stamens (d) Stamens and petals only 🧠 Explanation: Perfume is made from rose petals, rich in essential oils. 🧠 Explanation: Perfume is made from rose petals, rich in essential oils. 158 / 170 158. Morphine is obtained from - (a) Papaver somniferum (b) Papaver rhoeas (c) Rauwolfia serpentina (d) Nicotiana tabacum 🧠 Explanation: Morphine is a narcotic alkaloid from opium poppy (Papaver somniferum). 🧠 Explanation: Morphine is a narcotic alkaloid from opium poppy (Papaver somniferum). 159 / 170 159. Which plant is used to make tobacco? (a) Cannabis (b) Coleus (c) Nicotiana (d) Ephedra 🧠 Explanation: Tobacco is obtained from the leaves of Nicotiana tabacum. 🧠 Explanation: Tobacco is obtained from the leaves of Nicotiana tabacum. 160 / 170 160. What type of plant is mustard? (a) Leafy (b) Shrub (c) Herb (d) None of these 🧠 Explanation: Mustard is a herbaceous plant, not woody or shrubby. 🧠 Explanation: Mustard is a herbaceous plant, not woody or shrubby. 161 / 170 161. Which is the smallest living alga? (a) Erythrotrichia (b) Chlorella (c) Rivularia (d) Chara 🧠 Explanation: Chlorella is a unicellular microscopic alga, used in biotechnology. 🧠 Explanation: Chlorella is a unicellular microscopic alga, used in biotechnology. 162 / 170 162. Which is the smallest known angiosperm (flowering plant)? (a) Wolffia globosa (b) Rafflesia (c) Utricularia (d) Drosera 🧠 Explanation: Wolffia is the smallest flowering plant, just a few millimeters in size. 🧠 Explanation: Wolffia is the smallest flowering plant, just a few millimeters in size. 163 / 170 163. Which of the following is a narcotic plant? (a) Papaver somniferum (b) Trifolium (c) Hibiscus (d) Hordeum 🧠 Explanation: Papaver somniferum (opium poppy) produces narcotic alkaloids like morphine. 🧠 Explanation: Papaver somniferum (opium poppy) produces narcotic alkaloids like morphine. 164 / 170 164. Which of the following leafy vegetables is called Indian spinach? (a) Amaranthus (b) Bean (c) Neem (d) Tulsi 🧠 Explanation: Amaranthus is often referred to as Indian spinach, used as a leafy green. 🧠 Explanation: Amaranthus is often referred to as Indian spinach, used as a leafy green. 165 / 170 165. Which vitamin is found in carrot? (a) Vitamin A (b) Vitamin B (c) Vitamin D (d) Vitamin C 🧠 Explanation: Carrots are rich in beta-carotene, a precursor to Vitamin A. 🧠 Explanation: Carrots are rich in beta-carotene, a precursor to Vitamin A. 166 / 170 166. Which parts of banana are used? (a) Root and stem (b) Stem and flower (c) Leaf and fruit (d) Leaf, flower, and fruit 🧠 Explanation: Banana is a multipurpose plant; its fruit, flower, and leaves are used. 🧠 Explanation: Banana is a multipurpose plant; its fruit, flower, and leaves are used. 167 / 170 167. Which spice is used in preparation of garam masala? (a) Cardamom (b) Clove (c) Black pepper (d) All of the above 🧠 Explanation: Garam masala includes cardamom, cloves, pepper, etc. 🧠 Explanation: Garam masala includes cardamom, cloves, pepper, etc. 168 / 170 168. Why are red, yellow, orange colors found in carrot, papaya, and mango? (a) Due to Lycopene (b) Due to Carotenoids (c) Due to Anthocyanins (d) Due to Tannins 🧠 Explanation: The orange/red/yellow color is due to carotenoids like beta-carotene. 🧠 Explanation: The orange/red/yellow color is due to carotenoids like beta-carotene. 169 / 170 169. Wheat, barley, oats, maize, and rice belong to which plant family? (a) Papilionaceae (b) Solanaceae (c) Poaceae (Gramineae) (d) Fabaceae 🧠 Explanation: These are cereal crops, belonging to the grass family (Poaceae). 🧠 Explanation: These are cereal crops, belonging to the grass family (Poaceae). 170 / 170 170. Which plant is used for making substitutes for cricket balls? (a) Salix caprea (b) Cedrus deodara (c) Morus alba (d) Ficus elastica 🧠 Explanation: Ficus elastica (rubber plant) is used to make rubber, useful for ball cores. 🧠 Explanation: Ficus elastica (rubber plant) is used to make rubber, useful for ball cores. Your score isThe average score is 0% 0% Restart quiz Share via: Facebook X (Twitter) LinkedIn More
