This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 2 Biological Classification – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 2 Biological Classification Quiz 14 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the Linnaean system primarily based on? A) Similarity of physical features. B) Similarity of colors. C) Similarity of sizes. D) Similarity of ages. Show Answer Correct Answer: A) Similarity of physical features. 2. 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. 3. After gram staining bacteria are washed with the help of A) Water. B) Alcohol. C) Acetone. D) More the one. Show Answer Correct Answer: D) More the one. 4. Which is the correct order of wheat? A) Triticum. B) Poales. C) Poaceae. D) Monocotyledon. Show Answer Correct Answer: B) Poales. 5. Which of the following is a unicellular sac fungus? A) Claviceps. B) Saccharomyces. C) Penicillium. D) Neurospora. Show Answer Correct Answer: B) Saccharomyces. 6. 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. 7. Which statements is correct for bacterial transduction? A) Transfer of some genes from one bacteria to another bacteria through virus. B) Transfer of genes from one bacteria to another bacteria by conjugation. C) Bacteria obtained its DNA directly. D) Bacteria obtained DNA from other external source. Show Answer Correct Answer: A) Transfer of some genes from one bacteria to another bacteria through virus. 8. 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). 9. The Phylum Annelida has how many (living) classes ..... ? A) 6. B) 7. C) 8. D) 9. Show Answer Correct Answer: B) 7. 10. 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. 11. 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. 12. 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. 13. 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. 14. 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. 15. 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. 16. Which of the following is a characteristic of a dichotomous key? A) It requires genetic analysis for accuracy. B) It uses multiple-choice questions. C) It provides a single path to identify an organism. D) It uses paired statements to guide identification. Show Answer Correct Answer: D) It uses paired statements to guide identification. 17. 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. 18. Which of the following Kingdoms is made up of mostly multicellular eukaryotes that absorb nutrients from their surroundings? A) Protists. B) Animals. C) Fungi. D) Plants. Show Answer Correct Answer: C) Fungi. 19. Which of the following organisms are MOST closely related? A) Organisms that share a domain. B) Organisms that share a family. C) Organisms that share a genus. D) Organisms that share an order. Show Answer Correct Answer: C) Organisms that share a genus. 20. 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. 21. 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. 22. Organisms that live on or in the bottom A) Benthos. B) Neuston. C) Littoral. D) Heterotrophs. Show Answer Correct Answer: A) Benthos. 23. 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. 24. "Botany" and "zoology" are ..... words. A) Greek. B) Latin. C) Spanish. D) None of the above. Show Answer Correct Answer: A) Greek. 25. In a dichotomous key, what does each step typically consist of? A) A pair of contrasting statements. B) A single question with multiple answers. C) A list of possible species. D) A detailed description of an organism. Show Answer Correct Answer: A) A pair of contrasting statements. ← 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