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Class 11 Biology Chapter 2 Biological Classification Quiz 5 (60 MCQs)

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1. Siliceous frustules of diatoms being indestructible, piled up at the bottom of ocean and formed a thick bed over billions of years. Such a thick bed is known as
2. ..... is putting things into groups based on similar characteristics.
3. Bacterium that converts protein of dead plants and animals into ammonia is.
4. Plasmogamy is fusion of
5. Organisms are named using which 2 levels of the classification system?
6. Which of the following is a characteristic of the kingdom Protista?
7. Which of the following statements is incorrect about the Two Kingdom Classification?
8. Who is the father of taxonomy?
9. The phylum Brachiopoda contains how many orders?
10. A group of related classes of plants is a
11. Read the following statements and select the option which identifies the incorrect ones.i) Potato spindle tuber disease is caused by viroids.ii) Viruses are obligate parasites.iii) Retroviruses have two copies of ssRNAiv) Capsomeres are arranged in rounded form.
12. Which of the following statements about Euglena is correct?
13. Which of the following environmental conditions are essential for optimum growth of Mucor on a piece of bread?A. Temperature of about 25 CB. Temperature of about 5 CC Relative humidity of 5 %D. Relative humidity of 97%E. A shady placeF. A Brightly illuminated place.Choose the answer from the given options
14. What is the correct order of classification?family
15. The system for identifying organisms that uses two words to name species is
16. The science of describing, classifying, and naming organisms is called .....
17. Plant decomposers are
18. What is the advantage of asexual reproduction in protists?
19. Who was the earliest to attempt a scientific basis for classification?
20. A. Unicellular, colonial, filamentous, marine or terrestrial forms.B. The colonies are surrounded by a gelatinous sheath.C. Some can fix atmospheric nitrogen in specialized cells called heterocyst.D. They often form blooms in water bodies.These above characters are seen in
21. Assertion-slime moulds have characters of both plants and animalsReason-reproductive phase is animal like and vegetative phase is plant like
22. Pinus, a conifer, cannot germinate without the presence of members of kingdom ..... in it's roots.
23. Which of the following are heterotrophs and live as predators or parasites?
24. Kingdom Monera has eukaryotic cell type
25. The beautiful diatoms and desmids are placed under
26. Kingdom protista includes how many from the followings? Dinoflagellates, Deuteromycetes, Protozoans, Phycomycetes, Euglenoids, Lichen, Slime moulds, Archaebacteria, Ascomycetes, Chrysophytes.
27. Tool used by a taxonomist to identify an unknown organism is a:
28. Aerobes BACTERIA useS ..... for respiration
29. CITRUS CANKER IS CAUSED BY
30. What would scientists do it they discovered organisms that could not fit into any of the four kingdoms of the domain Eukarya?
31. Today, scientists use an ..... level system to classify living things.
32. What is the highest taxonomic rank in the Linnaean system?
33. Edible fungi with dolipore septum is
34. Mycoplasmas are classified under which of the following kingdoms?
35. Some of the bacteria are ..... , i.e., they synthesise their own food from inorganic substrates.
36. My Kingdom includes mushrooms and yeast!
37. Which of the following statements is not correct regarding the class Ascomycetes?
38. Which of the following protists contain chloroplasts and are therefore autotrophic?
39. Mode of nutrition in monera is heterotrophic
40. Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen (NEET 2017)
41. Tobacco mosaic virus has
42. Whittaker proposed which of the following?
43. What is the main advantage of using binomial nomenclature in scientific classification?
44. Bacteria belong to which Domain?
45. Viroids differ from viruses in being
46. Assertion: "Fungi imperfecti" does not show alternation of generation. Reason:The diploid phase is present in only zygote
47. What is a Viroid made of?
48. In an experiment, a microbiologist put equal number each of the following organism into a flask of sterile broth consisting mostly of sugar and a few amino acids. He then placed the flask in the dark. Which of the organism would be most likely to survive?
49. What is the primary basis for the classification of organisms into the domain Eukarya?
50. Pick up the wrong statement.
51. Bacteria reproduce by:
52. Assertion-Slime moulds form fruiting bodies under unfavourable conditionsReason-Naked plasmodium is formed during favourable conditions.
53. An organism with cytoplasm, DNA and RNA but no cell wall is
54. While studying about aquatic organisms, Ram found some organisms in which the cell walls form two thin overlapping shells which fit together. Which organism did he find?
55. This domain contains organisms that have a true nucleus in each of their cells. This domain breaks down into four kingdoms.
56. Methanogens are responsible for
57. Read the following statements & choose the correct ones-I) majority of euglenoids are found in marine water II) instead of cell wall they have lipid rich layer called as pellicle which makes their body flexible III) they have two flagella one long and one short.
58. MYCELIUM IN FOLLOWING CASE IS ASEPTATE AND COENOCYTIC
59. Nitrocystis, Euglena, Nostoc, Aulosira, Rhizobium, Mycobacterium leprae, Lactobacillus, Frankia, Spirulina, Physarum, pseudomonasaccording to above given examples find total number of autotrophs among them.
60. In plants, mosaic formation, leaf rolling and curling, yellowing of plant parts, vein clearing, dwarfing and stunted growth, necrosis, etc., are the symptoms of
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