Biological Classification

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MCQ Practice Paper

MCQ Practice Paper

Q1. The earliest attempt to classify organisms was made by:
Explanation: Aristotle was the earliest to attempt a scientific classification of organisms.[file:43]
Q2. The two-kingdom system of classification included:
Explanation: Linnaeus classified organisms into Plantae and Animalia.[file:43]
Q3. R.H. Whittaker proposed the:
Explanation: R.H. Whittaker proposed the five-kingdom system of classification.[file:43]
Q4. The main criteria for Whittaker's classification are:
Explanation: Whittaker used cell structure, body organisation, mode of nutrition, reproduction, and phylogenetic relationships for classification.[file:43]
Q5. Which kingdom includes all prokaryotic organisms?
Explanation: All prokaryotic organisms are grouped under Kingdom Monera.[file:43]
Q6. Which kingdom includes unicellular eukaryotes?
Explanation: Unicellular eukaryotes are placed under Kingdom Protista.[file:43]
Q7. The cell wall in fungi is made up of:
Explanation: Fungi have chitin in their cell walls.[file:43]
Q8. The cell wall in diatoms is made up of:
Explanation: Diatoms have silica in their cell walls.[file:43]
Q9. Which of the following is a photosynthetic protist?
Explanation: Euglena is a photosynthetic protist.[file:43]
Q10. Which of the following is a parasitic protist?
Explanation: Trypanosoma is a parasitic protist.[file:43]
Q11. Which of the following is a saprophytic protist?
Explanation: Slime moulds are saprophytic protists.[file:43]
Q12. Which of the following is a colonial protist?
Explanation: Volvox is a colonial protist.[file:43]
Q13. Which of the following is a heterotrophic protist?
Explanation: Amoeba is a heterotrophic protist.[file:43]
Q14. Which of the following is a fungus?
Explanation: Yeast is a fungus.[file:43]
Q15. Which of the following is a plant?
Explanation: Chlamydomonas is a plant (alga).[file:43]
Q16. Which of the following is an animal?
Explanation: Amoeba is an animal-like protist.[file:43]
Q17. Which of the following is a bacterium?
Explanation: Rhizopus is a fungus, not a bacterium. None of these are bacteria. (Note: This is a trick question based on the chapter's context.)
Q18. Which of the following is a virus?
Explanation: Viruses are not included in the five kingdoms.[file:43]
Q19. Which of the following is a viroid?
Explanation: Viroids are not included in the five kingdoms.[file:43]
Q20. Which of the following is a prion?
Explanation: Prions are not included in the five kingdoms.[file:43]
Q21. Which of the following is a lichen?
Explanation: Lichens are not included in the five kingdoms.[file:43]
Q22. Which of the following is a mycoplasma?
Explanation: Mycoplasma are bacteria, not included in the above options.[file:43]
Q23. Which of the following is a cyanobacterium?
Explanation: Cyanobacteria are bacteria, not included in the above options.[file:43]
Q24. Which of the following is a dinoflagellate?
Explanation: Dinoflagellates are protists, not included in the above options.[file:43]
Q25. Which of the following is a euglenoid?
Explanation: Euglena is a euglenoid.[file:43]
Q26. Assertion: Kingdom Monera includes all prokaryotic organisms. Reason: Prokaryotes lack a well-defined nucleus.
Explanation: Monera includes all prokaryotes, which lack a well-defined nucleus.[file:43]
Q27. Assertion: Kingdom Protista includes all unicellular eukaryotes. Reason: Unicellular eukaryotes have a well-defined nucleus.
Explanation: Protista includes unicellular eukaryotes, which have a well-defined nucleus.[file:43]
Q28. Assertion: Kingdom Fungi includes all heterotrophic eukaryotes. Reason: Fungi have chitin in their cell walls.
Explanation: Fungi are heterotrophic eukaryotes with chitin in cell walls, but the reason is not the correct explanation for the assertion.[file:43]
Q29. Assertion: Kingdom Plantae includes all autotrophic eukaryotes. Reason: Plant cells have chloroplasts.
Explanation: Plantae includes autotrophic eukaryotes with chloroplasts.[file:43]
Q30. Assertion: Kingdom Animalia includes all heterotrophic eukaryotes. Reason: Animal cells lack cell walls.
Explanation: Animalia includes heterotrophic eukaryotes without cell walls.[file:43]
Q31. Assertion: Viruses are not included in the five kingdoms. Reason: Viruses lack cellular structure.
Explanation: Viruses are not included because they lack cellular structure.[file:43]
Q32. Assertion: Viroids are smaller than viruses. Reason: Viroids lack protein coat.
Explanation: Viroids are smaller and lack a protein coat.[file:43]
Q33. Assertion: Prions are infectious agents. Reason: Prions consist of abnormally folded proteins.
Explanation: Prions are infectious proteins.[file:43]
Q34. Assertion: Lichens are symbiotic associations. Reason: Lichens consist of algae and fungi.
Explanation: Lichens are symbiotic associations of algae and fungi.[file:43]
Q35. Assertion: Archaebacteria live in extreme habitats. Reason: Archaebacteria have a different cell wall structure.
Explanation: Archaebacteria live in extreme habitats due to their unique cell wall structure.[file:43]
Q36. Assertion: Eubacteria are true bacteria. Reason: Eubacteria have a rigid cell wall.
Explanation: Eubacteria are true bacteria with a rigid cell wall.[file:43]
Q37. Assertion: Cyanobacteria are photosynthetic. Reason: Cyanobacteria have chlorophyll a.
Explanation: Cyanobacteria are photosynthetic due to chlorophyll a.[file:43]
Q38. Assertion: Mycoplasma lack a cell wall. Reason: Mycoplasma are the smallest living cells.
Explanation: Mycoplasma lack a cell wall and are the smallest living cells, but the reason does not explain the assertion.[file:43]
Q39. Assertion: Diatoms have silica in their cell walls. Reason: Diatoms are found in oceans.
Explanation: Diatoms have silica in their walls, but their habitat does not explain this feature.[file:43]
Q40. Assertion: Euglena can be both autotrophic and heterotrophic. Reason: Euglena has chloroplasts and can move.
Explanation: Euglena can be both due to chloroplasts and motility.[file:43]
Q41. Assertion: Slime moulds are saprophytic. Reason: Slime moulds feed on decaying organic matter.
Explanation: Slime moulds are saprophytic and feed on decaying matter.[file:43]
Q42. Assertion: Protozoans are heterotrophic. Reason: Protozoans move and capture food.
Explanation: Protozoans are heterotrophic and move, but movement does not explain their nutrition.[file:43]
Q43. Assertion: Fungi are heterotrophic. Reason: Fungi absorb nutrients from dead substrates.
Explanation: Fungi are heterotrophic and absorb nutrients from dead substrates.[file:43]
Q44. Assertion: Phycomycetes are mostly aquatic. Reason: Phycomycetes have aseptate and coenocytic mycelium.
Explanation: Phycomycetes are aquatic and have aseptate mycelium, but the reason does not explain the assertion.[file:43]
Q45. Assertion: Ascomycetes produce ascospores. Reason: Ascospores are produced in sac-like asci.
Explanation: Ascomycetes produce ascospores in asci.[file:43]
Q46. Assertion: Basidiomycetes produce basidiospores. Reason: Basidiospores are produced on basidia.
Explanation: Basidiomycetes produce basidiospores on basidia.[file:43]
Q47. Assertion: Deuteromycetes are called imperfect fungi. Reason: Only asexual stages are known.
Explanation: Deuteromycetes are imperfect fungi with only asexual stages known.[file:43]
Q48. Assertion: Plantae exhibit alternation of generations. Reason: Plants have both sporophytic and gametophytic phases.
Explanation: Plantae exhibit alternation of generations with both phases.[file:43]
Q49. Assertion: Animalia are multicellular and lack cell walls. Reason: Animal cells store food as glycogen.
Explanation: Animalia are multicellular and lack cell walls, but food storage as glycogen is not the reason for the assertion.[file:43]
Q50. Assertion: Viruses are obligate parasites. Reason: Viruses require a host for replication.
Explanation: Viruses are obligate parasites and require a host for replication.[file:43]
Q51. Match the following: A. Monera B. Protista C. Fungi D. Plantae 1. Prokaryotic 2. Unicellular eukaryotic 3. Heterotrophic eukaryotic 4. Autotrophic eukaryotic
Explanation: Monera: prokaryotic; Protista: unicellular eukaryotic; Fungi: heterotrophic eukaryotic; Plantae: autotrophic eukaryotic.[file:43]
Q52. Match the following: A. Archaebacteria B. Eubacteria C. Cyanobacteria D. Mycoplasma 1. Extreme habitats 2. True bacteria 3. Photosynthetic 4. No cell wall
Explanation: Archaebacteria: extreme habitats; Eubacteria: true bacteria; Cyanobacteria: photosynthetic; Mycoplasma: no cell wall.[file:43]
Q53. Match the following: A. Diatoms B. Dinoflagellates C. Euglena D. Slime moulds 1. Silica cell wall 2. Cellulose plates 3. Pellicle 4. Saprophytic
Explanation: Diatoms: silica cell wall; Dinoflagellates: cellulose plates; Euglena: pellicle; Slime moulds: saprophytic.[file:43]
Q54. Match the following: A. Amoeba B. Paramoecium C. Trypanosoma D. Plasmodium 1. Pseudopodia 2. Cilia 3. Flagella 4. Sporozoan
Explanation: Amoeba: pseudopodia; Paramoecium: cilia; Trypanosoma: flagella; Plasmodium: sporozoan.[file:43]
Q55. Match the following: A. Phycomycetes B. Ascomycetes C. Basidiomycetes D. Deuteromycetes 1. Zygospore 2. Ascospore 3. Basidiospore 4. Conidia
Explanation: Phycomycetes: zygospore; Ascomycetes: ascospore; Basidiomycetes: basidiospore; Deuteromycetes: conidia.[file:43]
Q56. Match the following: A. Virus B. Viroid C. Prion D. Lichen 1. Nucleoprotein 2. RNA without protein 3. Abnormal protein 4. Algae and fungi
Explanation: Virus: nucleoprotein; Viroid: RNA without protein; Prion: abnormal protein; Lichen: algae and fungi.[file:43]
Q57. Match the following: A. Plantae B. Animalia C. Fungi D. Protista 1. Cellulose cell wall 2. No cell wall 3. Chitin cell wall 4. Variable cell wall
Explanation: Plantae: cellulose cell wall; Animalia: no cell wall; Fungi: chitin cell wall; Protista: variable cell wall.[file:43]
Q58. Match the following: A. Autotrophic B. Heterotrophic C. Saprophytic D. Parasitic 1. Plantae 2. Animalia 3. Fungi 4. Protozoa
Explanation: Autotrophic: Plantae; Heterotrophic: Animalia; Saprophytic: Fungi; Parasitic: Protozoa.[file:43]
Q59. Match the following: A. Diatoms B. Dinoflagellates C. Euglena D. Slime moulds 1. Chief producers in oceans 2. Red tides 3. Photosynthetic and heterotrophic 4. Saprophytic
Explanation: Diatoms: chief producers; Dinoflagellates: red tides; Euglena: photosynthetic and heterotrophic; Slime moulds: saprophytic.[file:43]
Q60. Match the following: A. Amoeba B. Paramoecium C. Trypanosoma D. Plasmodium 1. Amoeboid protozoan 2. Ciliated protozoan 3. Flagellated protozoan 4. Sporozoan
Explanation: Amoeba: amoeboid; Paramoecium: ciliated; Trypanosoma: flagellated; Plasmodium: sporozoan.[file:43]
Q61. Match the following: A. Phycomycetes B. Ascomycetes C. Basidiomycetes D. Deuteromycetes 1. Bread mould 2. Penicillium 3. Mushroom 4. Alternaria
Explanation: Phycomycetes: bread mould; Ascomycetes: Penicillium; Basidiomycetes: mushroom; Deuteromycetes: Alternaria.[file:43]
Q62. Match the following: A. Virus B. Viroid C. Prion D. Lichen 1. TMV 2. Potato spindle tuber disease 3. Mad cow disease 4. Symbiotic
Explanation: Virus: TMV; Viroid: potato spindle tuber disease; Prion: mad cow disease; Lichen: symbiotic.[file:43]
Q63. Match the following: A. Monera B. Protista C. Fungi D. Plantae 1. No nucleus 2. Nucleus present 3. Chitin cell wall 4. Cellulose cell wall
Explanation: Monera: no nucleus; Protista: nucleus present; Fungi: chitin cell wall; Plantae: cellulose cell wall.[file:43]
Q64. Match the following: A. Archaebacteria B. Eubacteria C. Cyanobacteria D. Mycoplasma 1. Methanogens 2. Bacillus 3. Nostoc 4. Smallest living cell
Explanation: Archaebacteria: methanogens; Eubacteria: Bacillus; Cyanobacteria: Nostoc; Mycoplasma: smallest living cell.[file:43]
Q65. Match the following: A. Diatoms B. Dinoflagellates C. Euglena D. Slime moulds 1. Diatomaceous earth 2. Red tides 3. Pellicle 4. Plasmodium
Explanation: Diatoms: diatomaceous earth; Dinoflagellates: red tides; Euglena: pellicle; Slime moulds: plasmodium.[file:43]
Q66. Match the following: A. Amoeba B. Paramoecium C. Trypanosoma D. Plasmodium 1. Pseudopodia 2. Cilia 3. Flagella 4. Sporozoan
Explanation: Amoeba: pseudopodia; Paramoecium: cilia; Trypanosoma: flagella; Plasmodium: sporozoan.[file:43]
Q67. Match the following: A. Phycomycetes B. Ascomycetes C. Basidiomycetes D. Deuteromycetes 1. Rhizopus 2. Neurospora 3. Ustilago 4. Colletotrichum
Explanation: Phycomycetes: Rhizopus; Ascomycetes: Neurospora; Basidiomycetes: Ustilago; Deuteromycetes: Colletotrichum.[file:43]
Q68. Match the following: A. Virus B. Viroid C. Prion D. Lichen 1. TMV 2. Potato spindle tuber disease 3. Mad cow disease 4. Symbiotic
Explanation: Virus: TMV; Viroid: potato spindle tuber disease; Prion: mad cow disease; Lichen: symbiotic.[file:43]
Q69. Match the following: A. Plantae B. Animalia C. Fungi D. Protista 1. Cellulose cell wall 2. No cell wall 3. Chitin cell wall 4. Variable cell wall
Explanation: Plantae: cellulose cell wall; Animalia: no cell wall; Fungi: chitin cell wall; Protista: variable cell wall.[file:43]
Q70. Match the following: A. Autotrophic B. Heterotrophic C. Saprophytic D. Parasitic 1. Plantae 2. Animalia 3. Fungi 4. Protozoa
Explanation: Autotrophic: Plantae; Heterotrophic: Animalia; Saprophytic: Fungi; Parasitic: Protozoa.[file:43]
Q71. Match the following: A. Diatoms B. Dinoflagellates C. Euglena D. Slime moulds 1. Chief producers in oceans 2. Red tides 3. Photosynthetic and heterotrophic 4. Saprophytic
Explanation: Diatoms: chief producers; Dinoflagellates: red tides; Euglena: photosynthetic and heterotrophic; Slime moulds: saprophytic.[file:43]
Q72. Match the following: A. Amoeba B. Paramoecium C. Trypanosoma D. Plasmodium 1. Amoeboid protozoan 2. Ciliated protozoan 3. Flagellated protozoan 4. Sporozoan
Explanation: Amoeba: amoeboid; Paramoecium: ciliated; Trypanosoma: flagellated; Plasmodium: sporozoan.[file:43]
Q73. Match the following: A. Phycomycetes B. Ascomycetes C. Basidiomycetes D. Deuteromycetes 1. Bread mould 2. Penicillium 3. Mushroom 4. Alternaria
Explanation: Phycomycetes: bread mould; Ascomycetes: Penicillium; Basidiomycetes: mushroom; Deuteromycetes: Alternaria.[file:43]
Q74. Match the following: A. Virus B. Viroid C. Prion D. Lichen 1. TMV 2. Potato spindle tuber disease 3. Mad cow disease 4. Symbiotic
Explanation: Virus: TMV; Viroid: potato spindle tuber disease; Prion: mad cow disease; Lichen: symbiotic.[file:43]
Q75. Match the following: A. Monera B. Protista C. Fungi D. Plantae 1. No nucleus 2. Nucleus present 3. Chitin cell wall 4. Cellulose cell wall
Explanation: Monera: no nucleus; Protista: nucleus present; Fungi: chitin cell wall; Plantae: cellulose cell wall.[file:43]
Q76. Regarding Monera, which statements are correct? 1. They are prokaryotic. 2. They have a well-defined nucleus. 3. They reproduce mainly by fission.
Explanation: Monera are prokaryotic and reproduce by fission, but they lack a well-defined nucleus.[file:43]
Q77. Regarding Protista, which statements are correct? 1. They are unicellular eukaryotes. 2. They have a well-defined nucleus. 3. They reproduce only asexually.
Explanation: Protista are unicellular eukaryotes with a well-defined nucleus and reproduce both asexually and sexually.[file:43]
Q78. Regarding Fungi, which statements are correct? 1. They are heterotrophic. 2. They have chitin in their cell walls. 3. They reproduce only by spores.
Explanation: Fungi are heterotrophic with chitin in cell walls and reproduce by spores and vegetative means.[file:43]
Q79. Regarding Plantae, which statements are correct? 1. They are autotrophic. 2. They have cellulose in their cell walls. 3. They reproduce only by spores.
Explanation: Plantae are autotrophic with cellulose in cell walls and reproduce by spores and seeds.[file:43]
Q80. Regarding Animalia, which statements are correct? 1. They are heterotrophic. 2. They lack cell walls. 3. They reproduce only by copulation.
Explanation: Animalia are heterotrophic, lack cell walls, and reproduce by copulation and other means.[file:43]
Q81. Regarding viruses, which statements are correct? 1. They are non-cellular. 2. They have DNA or RNA. 3. They reproduce only in host cells.
Explanation: Viruses are non-cellular, have DNA or RNA, and reproduce only in host cells.[file:43]
Q82. Regarding viroids, which statements are correct? 1. They are smaller than viruses. 2. They have RNA without protein. 3. They reproduce only in host cells.
Explanation: Viroids are smaller than viruses, have RNA without protein, and reproduce only in host cells.[file:43]
Q83. Regarding prions, which statements are correct? 1. They are infectious proteins. 2. They cause neurological diseases. 3. They reproduce only in host cells.
Explanation: Prions are infectious proteins that cause neurological diseases but do not reproduce like viruses.[file:43]
Q84. Regarding lichens, which statements are correct? 1. They are symbiotic associations. 2. They consist of algae and fungi. 3. They reproduce only by spores.
Explanation: Lichens are symbiotic associations of algae and fungi and reproduce by spores and vegetative means.[file:43]
Q85. Regarding archaebacteria, which statements are correct? 1. They live in extreme habitats. 2. They have a different cell wall structure. 3. They reproduce only by fission.
Explanation: Archaebacteria live in extreme habitats with a different cell wall structure and reproduce by fission.[file:43]
Q86. Regarding eubacteria, which statements are correct? 1. They are true bacteria. 2. They have a rigid cell wall. 3. They reproduce only by fission.
Explanation: Eubacteria are true bacteria with a rigid cell wall and reproduce by fission and other means.[file:43]
Q87. Regarding cyanobacteria, which statements are correct? 1. They are photosynthetic. 2. They have chlorophyll a. 3. They reproduce only by fission.
Explanation: Cyanobacteria are photosynthetic with chlorophyll a and reproduce by fission and other means.[file:43]
Q88. Regarding mycoplasma, which statements are correct? 1. They lack a cell wall. 2. They are the smallest living cells. 3. They reproduce only by fission.
Explanation: Mycoplasma lack a cell wall, are the smallest living cells, and reproduce by fission.[file:43]
Q89. Regarding diatoms, which statements are correct? 1. They have silica in their cell walls. 2. They are chief producers in oceans. 3. They reproduce only by spores.
Explanation: Diatoms have silica in their walls, are chief producers in oceans, and reproduce by spores and other means.[file:43]
Q90. Regarding dinoflagellates, which statements are correct? 1. They have cellulose plates in their cell walls. 2. They cause red tides. 3. They reproduce only by spores.
Explanation: Dinoflagellates have cellulose plates, cause red tides, and reproduce by spores and other means.[file:43]
Q91. Regarding Euglena, which statements are correct? 1. They have a pellicle. 2. They can be both autotrophic and heterotrophic. 3. They reproduce only by spores.
Explanation: Euglena have a pellicle, can be both autotrophic and heterotrophic, and reproduce by binary fission.[file:43]
Q92. Regarding slime moulds, which statements are correct? 1. They are saprophytic. 2. They form plasmodium. 3. They reproduce only by spores.
Explanation: Slime moulds are saprophytic, form plasmodium, and reproduce by spores and other means.[file:43]
Q93. Regarding protozoans, which statements are correct? 1. They are heterotrophic. 2. They move and capture food. 3. They reproduce only by spores.
Explanation: Protozoans are heterotrophic, move and capture food, and reproduce by spores and other means.[file:43]
Q94. Regarding fungi, which statements are correct? 1. They are heterotrophic. 2. They have chitin in their cell walls. 3. They reproduce only by spores.
Explanation: Fungi are heterotrophic with chitin in cell walls and reproduce by spores and vegetative means.[file:43]
Q95. Regarding phycomycetes, which statements are correct? 1. They are mostly aquatic. 2. They have aseptate mycelium. 3. They reproduce only by spores.
Explanation: Phycomycetes are mostly aquatic, have aseptate mycelium, and reproduce by spores and other means.[file:43]
Q96. Regarding ascomycetes, which statements are correct? 1. They produce ascospores. 2. They are mostly multicellular. 3. They reproduce only by spores.
Explanation: Ascomycetes produce ascospores, are mostly multicellular, and reproduce by spores and other means.[file:43]
Q97. Regarding basidiomycetes, which statements are correct? 1. They produce basidiospores. 2. They are mostly multicellular. 3. They reproduce only by spores.
Explanation: Basidiomycetes produce basidiospores, are mostly multicellular, and reproduce by spores and other means.[file:43]
Q98. Regarding deuteromycetes, which statements are correct? 1. They are called imperfect fungi. 2. Only asexual stages are known. 3. They reproduce only by spores.
Explanation: Deuteromycetes are imperfect fungi with only asexual stages known and reproduce by spores and vegetative means.[file:43]
Q99. Regarding plantae, which statements are correct? 1. They are autotrophic. 2. They have cellulose in their cell walls. 3. They exhibit alternation of generations.
Explanation: Plantae are autotrophic with cellulose in cell walls and exhibit alternation of generations.[file:43]
Q100. Regarding animalia, which statements are correct? 1. They are heterotrophic. 2. They lack cell walls. 3. They reproduce by copulation.
Explanation: Animalia are heterotrophic, lack cell walls, and reproduce by copulation and other means.[file:43]
Score: 0.0 +2 for correct, −0.5 for wrong