This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 2 Biological Classification – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 2 Biological Classification Quiz 6 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Fungi usually store reserve food material in the form of A) Starch. B) Oil and glycogen. C) Lipid. D) Protein. Show Answer Correct Answer: B) Oil and glycogen. 2. Dikaryon is a feature of A) Phycomycetes. B) Deuteromycetes. C) Basidiomycetes. D) None of these. Show Answer Correct Answer: C) Basidiomycetes. 3. What is the main purpose of classifying organisms historically? A) For environmental conservation. B) For educational purposes. C) For food, shelter, and clothing. D) For scientific research. Show Answer Correct Answer: C) For food, shelter, and clothing. 4. Which one of the following matches is correct? A)Phytophthora Aseptate mycelium Basidiomycetes B)Alternaria Sexual reproduction absent Deuteromycetes C)Mucor Reproduction by conjugation Ascomycetes D)Agancus Parasitic fungus Basidiomycetes A) B. B) D. C) C. D) A. Show Answer Correct Answer: A) B. 5. In cell wall forms two thin overlapping shells which fit together as in a soap box A) Dinoflagellates. B) Diatoms. C) Euglenoids. D) None of these. Show Answer Correct Answer: B) Diatoms. 6. Which group did Aristotle classify animals into? A) Those with wings and those without. B) Those with red blood and those without. C) Those that swim and those that walk. D) Those that are large and those that are small. Show Answer Correct Answer: B) Those with red blood and those without. 7. Which among the following is a Basidiomycetes fungi? A) Rhizopus. B) Polyporus. C) Trichoderma. D) Penicillium. Show Answer Correct Answer: B) Polyporus. 8. Bacteria are classified as: A) Eukaryotic and multicellular. B) Prokaryotic and unicellular. C) Eukaryotic and unicellular. D) Prokaryotic and multicellular. Show Answer Correct Answer: B) Prokaryotic and unicellular. 9. Diatomaceous earth is used for all except A) Polishing. B) Filtration of oils and syrups. C) Making sound and fire proof rooms. D) Biogas production. Show Answer Correct Answer: D) Biogas production. 10. Kingdom plantae includes A) Algae and bryophytes. B) Pteridophytes and gymnosperms. C) Angiosperms. D) All of these. Show Answer Correct Answer: D) All of these. 11. Which of the following statement is correct about bacteria? A) Bacteria are simple in both structure & behaviour. B) Bacteria are complex in structure as well as in behaviour. C) Bacteria are complex in structure but simple in behaviour. D) Bacteria are simple in structure but complex in behaviour. Show Answer Correct Answer: D) Bacteria are simple in structure but complex in behaviour. 12. Viruses being an obligate endoparasite cannot easily affect the A) Leaves of tobacco plant. B) Meristematic cells of plants. C) Roots. D) Inflorescence. Show Answer Correct Answer: B) Meristematic cells of plants. 13. How does Kingdom Animalia differ from Kingdom Plantae? A) All animalia have 4 legs and hair. B) All plantae eat other organisms. C) Animalia and plantae both have nuclei. D) Animalia are multicellular heterotrophs. Show Answer Correct Answer: D) Animalia are multicellular heterotrophs. 14. Methanogens are not ..... A) Anaerobic. B) Symbiont in cattle's. C) Methane producer. D) Obligate parasite. Show Answer Correct Answer: D) Obligate parasite. 15. Which of the following kingdoms includes fungi? A) Kingdom Fungi. B) Kingdom Monera. C) Kingdom Plantae. D) Kingdom Animalia. Show Answer Correct Answer: A) Kingdom Fungi. 16. Which of the following have only nucleic acid A) Prions. B) Bacteria. C) Virus. D) Viroids. Show Answer Correct Answer: D) Viroids. 17. Whales, eels, dolphin and squid are examples of A) Benthos. B) Nekton. C) Zooplankton. D) None of the above. Show Answer Correct Answer: B) Nekton. 18. When a virus invades a living cell, its ..... takes over the cell's functions. A) Outer coat. B) Cytoplasm. C) Core. D) Genetic material. Show Answer Correct Answer: D) Genetic material. 19. Some of these organisms can fix atmospheric nitrogen in specialised cells called heterocysts A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 20. ..... is a parasite of large intestine of human beings and causes the disease ..... A) Plasmodium vivax, malaria. B) Trypanosoma gambiense, sleeping sickness. C) Escherichia coli, amoebic dysentery. D) Entamoeba histolytica, amoebic dysentery. Show Answer Correct Answer: D) Entamoeba histolytica, amoebic dysentery. 21. What is the Linnaean system primarily based on? A) Similarity of sizes. B) Similarity of ages. C) Similarity of physical features. D) Similarity of colors. Show Answer Correct Answer: C) Similarity of physical features. 22. Which of the following kingdoms has no well defined boundaries? A) Monera. B) Protista. C) Fungi. D) None of these. Show Answer Correct Answer: B) Protista. 23. After gram staining bacteria are washed with the help of A) Alcohol. B) Acetone. C) Water. D) More the one. Show Answer Correct Answer: D) More the one. 24. Which is the correct order of wheat? A) Poaceae. B) Triticum. C) Monocotyledon. D) Poales. Show Answer Correct Answer: D) Poales. 25. Which of the following is a unicellular sac fungus? A) Neurospora. B) Claviceps. C) Saccharomyces. D) Penicillium. Show Answer Correct Answer: C) Saccharomyces. 26. Read the following statements and choose the correct option I) Thermoacidophiles are not found in hot Sulphur springs II) Thermoacidophiles can withstand conditions with pH = 2 A) Statement I is correct but II is in correct. B) Statement I is incorrect, but II is correct. C) Statement I & II both correct. D) Statement I & II both incorrect. Show Answer Correct Answer: B) Statement I is incorrect, but II is correct. 27. Which statements is correct for bacterial transduction? A) Bacteria obtained its DNA directly. B) Transfer of genes from one bacteria to another bacteria by conjugation. C) Bacteria obtained DNA from other external source. D) Transfer of some genes from one bacteria to another bacteria through virus. Show Answer Correct Answer: D) Transfer of some genes from one bacteria to another bacteria through virus. 28. The wonder drug, pencillin is extracted from which of the following species of Penicillium? A) P. notatum. B) P. chrysogenum. C) Both (a) and (b). D) None of these. Show Answer Correct Answer: C) Both (a) and (b). 29. The Phylum Annelida has how many (living) classes ..... ? A) 9. B) 8. C) 6. D) 7. Show Answer Correct Answer: D) 7. 30. Assertion-DNase can inhibit the process of transformationReason-transformation is absorption of DNA segment from the surrounding medium by a living bacterium. A) Both assertion and reason are true, reason is the correct explanation of assertion. B) Both assertion and reason are true but the reason is not a correct explanation of the assertion. C) Assertion is true but the reason is false. D) Assertion is false but the reason is true. Show Answer Correct Answer: B) Both assertion and reason are true but the reason is not a correct explanation of the assertion. 31. What's a viroid? A) Single stranded RNA and causes diseases in a plant. B) Any things that causes a disease. C) Prion. D) A living cell. Show Answer Correct Answer: A) Single stranded RNA and causes diseases in a plant. 32. Which one of the following is not a feature of class phycomycetes? A) Presence of cell wall. B) Coenocytic cytoplasm. C) Saprophytic. D) Septate mycelium. Show Answer Correct Answer: D) Septate mycelium. 33. What is the main criterion for classifying organisms into the domain Eukarya? A) Presence of a nucleus and membrane-bound organelles. B) Ability to photosynthesize. C) Being multicellular. D) Living in extreme environments. Show Answer Correct Answer: A) Presence of a nucleus and membrane-bound organelles. 34. Which of the following statements about Euglena is true? A) Euglenoids are flagellates. B) Euglena placed in continuous darkness lose their photosynthetic activity and die. C) The pigments of Euglena are quite different from those of green plants. D) Euglena is a marine protist. Show Answer Correct Answer: A) Euglenoids are flagellates. 35. The scientific name for a kangaroo is Macropus rufus, which indicates the kangaroo's A) Class and genus. B) Genus and species. C) Kingdom and class. D) Class and species. Show Answer Correct Answer: B) Genus and species. 36. Which of the following is a characteristic of a dichotomous key? A) It uses multiple-choice questions. B) It requires genetic analysis for accuracy. C) It uses paired statements to guide identification. D) It provides a single path to identify an organism. Show Answer Correct Answer: C) It uses paired statements to guide identification. 37. Which of the following is also known as Composer-Decomposer protist? A) Euglenoids. B) Slime moulds. C) Amoeboid protists. D) Sporozoan protists. Show Answer Correct Answer: B) Slime moulds. 38. Which of the following Kingdoms is made up of mostly multicellular eukaryotes that absorb nutrients from their surroundings? A) Animals. B) Fungi. C) Plants. D) Protists. Show Answer Correct Answer: B) Fungi. 39. Which of the following organisms are MOST closely related? A) Organisms that share a domain. B) Organisms that share a genus. C) Organisms that share an order. D) Organisms that share a family. Show Answer Correct Answer: B) Organisms that share a genus. 40. Why is classification considered a dynamic and ever-changing field in biology? A) Because new species are constantly being discovered. B) Due to advancements in genetic and molecular analysis. C) Because scientists frequently change their minds. D) Due to changes in environmental conditions. Show Answer Correct Answer: B) Due to advancements in genetic and molecular analysis. 41. Black rust of wheat is caused by A) Puccinia graminis. B) Ustilago. C) Pythium. D) None of these. Show Answer Correct Answer: A) Puccinia graminis. 42. Organisms that live on or in the bottom A) Neuston. B) Heterotrophs. C) Littoral. D) Benthos. Show Answer Correct Answer: D) Benthos. 43. Assertion-protozoans are believed to be primitive animalsReason-All protozoans are heterotrophs, either parasites or predators A) If A and R are true and R is the correct explanation of A. B) If A and R are true and R is not the correct explanation of A. C) If A is true and R is false. D) If A is false and R is true. Show Answer Correct Answer: A) If A and R are true and R is the correct explanation of A. 44. "Botany" and "zoology" are ..... words. A) Greek. B) Latin. C) Spanish. D) None of the above. Show Answer Correct Answer: A) Greek. 45. In a dichotomous key, what does each step typically consist of? A) A single question with multiple answers. B) A pair of contrasting statements. C) A list of possible species. D) A detailed description of an organism. Show Answer Correct Answer: B) A pair of contrasting statements. 46. Decomposers are organisms that A) Elaborate chemical substances, causingdeath of tissues. B) Operate in living body and simplifyingorganic substances of cells step by step. C) Attack and kill plants as well as animals. D) Operate in relay terms, simplifying stepby step the organic constituents of deadbody. Show Answer Correct Answer: D) Operate in relay terms, simplifying stepby step the organic constituents of deadbody. 47. A detailed list of characteristics used to identify organisms that using a two question system is called a(an) ..... A) Phylogeny. B) Dichotomous key. C) Name key. D) Taxonomy. Show Answer Correct Answer: B) Dichotomous key. 48. Certain fungi exists in mutualistic relationships with plants, wrapping around the roots of the plant. This increases the surface area of the plant roots and allows them to absorb more nutrients. Fungi in this relationship are known as ..... A) Diatoms. B) Mychorrizae. C) Bracket Fungi. D) Lichen. Show Answer Correct Answer: B) Mychorrizae. 49. Basal body of gram positive bacteria do not contains. A) S&M ring. B) S& P ring. C) L&P rings. D) I &p ring. Show Answer Correct Answer: C) L&P rings. 50. Which of the following statements regarding the class phycomycetes is incorrect? A) These are found in aquatic habitats and on decaying wood in moist and damp places or as obligate parasites on plants. B) Mycelium in these fungi is septate and branched. C) Asexual reproduction occurs by motile zoospores and by non-motile aplanospores. D) Mucor and Rhizopus are common examples of phycomycetes. Show Answer Correct Answer: B) Mycelium in these fungi is septate and branched. 51. The scientific name of onion is Allium cepa. The word "cepa" is the ..... A) Species. B) Order. C) Domain. D) Genus. Show Answer Correct Answer: A) Species. 52. Which taxonomic rank is directly above 'species'? A) Family. B) Order. C) Genus. D) Phylum. Show Answer Correct Answer: C) Genus. 53. Naked cytoplasm, multinucleated and saprophytic are the characteristics of A) Fungi. B) Monera. C) Protista. D) Slime molds. Show Answer Correct Answer: D) Slime molds. 54. The fundamental unit of heredity. A) Genes. B) Clade. C) RNA. D) DNA. Show Answer Correct Answer: A) Genes. 55. How many main criteria were used by Whittaker for classification? A) 4. B) 5. C) 3. D) 1. Show Answer Correct Answer: B) 5. 56. Which of the following is a characteristic of the kingdom Animalia? A) They are autotrophic. B) They have cell walls. C) They are heterotrophic and lack cell walls. D) They are unicellular. Show Answer Correct Answer: C) They are heterotrophic and lack cell walls. 57. Carl Linnaeus started by classifying animals. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 58. The creatures with sharp, crystal-crushing teeth were placed in which Order? A) Siderocat. B) Mammalia. C) Carnivora. D) Felidae-7. Show Answer Correct Answer: C) Carnivora. 59. The list below describes an organism. Characteristics of an Organism * Unicellular * Prokaryotic * Lives in very harsh environments Based on this list, in which kingdom should the organism be classified? A) Archaebacterial. B) Fungi. C) Animal. D) Protista. Show Answer Correct Answer: A) Archaebacterial. 60. Mohan has observed that the water logged areas in his neighbourhood produces a particular odour.(a) Name the gas that is produced by the marshy areas and the microorganisms responsible for that. A) Oxygen-mosses. B) Hydrogen-bacteria. C) Methane-Methanogens. D) Carbondioxide-yeast. Show Answer Correct Answer: C) Methane-Methanogens. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Biology Chapter 2 Biological Classification Quiz 1Class 11 Biology Chapter 2 Biological Classification Quiz 2Class 11 Biology Chapter 2 Biological Classification Quiz 3Class 11 Biology Chapter 2 Biological Classification Quiz 4Class 11 Biology Chapter 2 Biological Classification Quiz 5Class 11 Biology Chapter 2 Biological Classification Quiz 7Class 11 Biology Chapter 2 Biological Classification Quiz 8Class 11 Biology Chapter 2 Biological Classification Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books