This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 2 Biological Classification – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 2 Biological Classification Quiz 15 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. A detailed list of characteristics used to identify organisms that using a two question system is called a(an) ..... A) Name key. B) Phylogeny. C) Dichotomous key. D) Taxonomy. Show Answer Correct Answer: C) Dichotomous key. 3. 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) Mychorrizae. B) Lichen. C) Diatoms. D) Bracket Fungi. Show Answer Correct Answer: A) Mychorrizae. 4. Basal body of gram positive bacteria do not contains. A) S&M ring. B) L&P rings. C) I &p ring. D) S& P ring. Show Answer Correct Answer: B) L&P rings. 5. 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. 6. The scientific name of onion is Allium cepa. The word "cepa" is the ..... A) Domain. B) Order. C) Genus. D) Species. Show Answer Correct Answer: D) Species. 7. Which taxonomic rank is directly above 'species'? A) Order. B) Phylum. C) Family. D) Genus. Show Answer Correct Answer: D) Genus. 8. Naked cytoplasm, multinucleated and saprophytic are the characteristics of A) Monera. B) Protista. C) Fungi. D) Slime molds. Show Answer Correct Answer: D) Slime molds. 9. The fundamental unit of heredity. A) DNA. B) Genes. C) RNA. D) Clade. Show Answer Correct Answer: B) Genes. 10. How many main criteria were used by Whittaker for classification? A) 1. B) 3. C) 4. D) 5. Show Answer Correct Answer: D) 5. 11. 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. 12. 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. 13. The creatures with sharp, crystal-crushing teeth were placed in which Order? A) Carnivora. B) Mammalia. C) Felidae-7. D) Siderocat. Show Answer Correct Answer: A) Carnivora. 14. 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) Protista. B) Fungi. C) Archaebacterial. D) Animal. Show Answer Correct Answer: C) Archaebacterial. 15. 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) Hydrogen-bacteria. B) Methane-Methanogens. C) Carbondioxide-yeast. D) Oxygen-mosses. Show Answer Correct Answer: B) Methane-Methanogens. 16. Zygospore is formed from ..... A) Gametic union. B) Zygote. C) Gametangial copulation. D) Gametangial contact. Show Answer Correct Answer: C) Gametangial copulation. 17. A slide under microscope shows following features:i) Unicellularity ii) Well defined nucleusiii) Biflagellate-one flagellum lying longitudinally and the other transverselyWhat would you identify it as? A) Protozoan. B) Bacterium. C) Euglenoid. D) Dinoflagellate. Show Answer Correct Answer: D) Dinoflagellate. 18. Which domain includes single-celled microorganisms found in extreme environments? A) Archaea. B) Eukarya. C) Protista. D) Bacteria. Show Answer Correct Answer: A) Archaea. 19. When a fresh-water protozoan possessing a contractile vacuole, is placed in a glass containing marine water, the vacuole will A) Increase in number. B) Disappear. C) Increase in size. D) Decrease in size. Show Answer Correct Answer: D) Decrease in size. 20. Cells occur singly and have no evidence of a nucleus. A) Protists. B) Fungi. C) Monerans. D) Plants. Show Answer Correct Answer: C) Monerans. 21. Difference between virus and viroid is A) Absence of protein coat in viroid but present in virus. B) Presence of low molecular weight RNA in virus but absent in viroid. C) Both (a) and (b). D) None of the above. Show Answer Correct Answer: A) Absence of protein coat in viroid but present in virus. 22. Bentham and Hooker gave which system of classification A) Numerical. B) Phylogenetic. C) Artificial. D) Natural. Show Answer Correct Answer: D) Natural. 23. Living things are classified into 3 Domain System based on? A) Sequence of protein. B) Sequence of ribosomal RNA. C) Sequence of messenger RNA. D) Sequence of amino acid. Show Answer Correct Answer: B) Sequence of ribosomal RNA. 24. What is the study of classification? A) Taxonomy. B) Biology. C) Botany. D) Microbiology. Show Answer Correct Answer: A) Taxonomy. 25. Bovine spongiform encephalopathy (BSE) commonly called mad cow disease in cattle is caused by A) Virions. B) Virus. C) Prions. D) Viroid. Show Answer Correct Answer: C) Prions. ← PreviousNext →Related 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 6Class 11 Biology Chapter 2 Biological Classification Quiz 7Class 11 Biology Chapter 2 Biological Classification Quiz 8Class 11 Biology Chapter 2 Biological Classification Quiz 9Class 11 Biology Chapter 2 Biological Classification Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books