NCERT CLASS 11 | TOPIC : BIOLOGICAL CLASSIFICATION | PYQB (OLD) | NEET BIOLOGY ONLINE TEST

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NCERT CLASS 11 | TOPIC : BIOLOGICAL CLASSIFICATION | PYQB (OLD) | NEET BIOLOGY ONLINE TEST

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It contains 39 important questions. Choose the most correct answer. Then check your answer. Try again if there are errors. Regards : www.onlinetest.kalvisolai.com

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1 ➤ 1. Given below is the diagram of a bacteriophage. In which one of the options all four parts A, B, C and D are correct? [AIPMT MAINS 2010]

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(a) A: Tail fibres, B: Head, C: Sheath, D: Collar (b) A: Sheath, B: Collar, C: Head, D: Tail fibres (c) A: Head, B: Sheath, C: Collar, D: Tail fibres (d) A: Collar, B: Tail fibres, C: Head, D: Sheath

2 ➤ 2. Select the correct combination of the statements (A-D) regarding the characteristics of certain organisms [AIPMT MAINS 2010] (A) Methanogens are archaebacteria which produce methane in marshy areas. (B) Nostoc is a filamentous blue–green algae which fixes atmospheric nitrogen. (C) Chemosynthetic autotrophic bacteria synthesize cellulose from glucose. (D) Mycoplasma lack a cell wall and can survive without oxygen. The correct statements are:

(a) (B) and (C) (b) (A), (B) and (C) (c) (B), (C) and (D) (d) (A), (B) and (D)

3 ➤ 3. Some hyperthermophilic organisms that grow in highly acidic (pH = 2) habitats belong to the two groups called [AIPMT PRE 2010]

(a) Eubacteria and archaea (b) Cyanobacteria and diatoms (c) Protists and mosses (d) Liverworts and yeasts

4 ➤ Single-celled eukaryotes are included in [AIPMT PRE 2010]

(a) Protista (b) Fungi (c) Archaea (d) Monera

5 ➤ 5. The virus envelope is known as [AIPMT PRE 2010]

(a) Capsid (b) Virion (c) Nucleoprotein (d) Core

6 ➤ 6. Infectious proteins are present in [AIPMT PRE 2010]

(a) Gemini viruses (b) Prions (c) Viroids (d) Satellite viruses

7 ➤ 7. Organisms called methanogens are most abundant in a [AIPMT PRE 2011]

(a) Cattle yard (b) Polluted stream (c) Hot spring (d) Sulphur rock

8 ➤ 8. How many organisms in the list given below are autotrophs? Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Saccharomyces, Trypanosoma, Porphyra, Wolffia [AIPMT MAINS 2012]

(a) Five (b) Six (c) Three (d) Four

9 ➤ 9. The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorized as: [AIPMT PRE 2012]

(a) Cyanobacteria (b) Archaebacteria (c) Chemosynthetic autotrophs (d) Heterotrophic bacteria

10 ➤ 10. The cyanobacteria are also referred to as: [AIPMT PRE 2012]

(a) Protists (b) Golden algae (c) Slime moulds (d) Blue-green algae

11 ➤ 11. Which statement is wrong for viruses? [AIPMT PRE 2012]

(a) All are parasites. (b) All of them have helical symmetry. (c) They have the ability to synthesize nucleic acids and proteins. (d) Antibiotics have no effect on them.

12 ➤ 12. Which one single organism or the pair of organisms is correctly assigned to its or their named taxonomic group? [AIPMT PRE 2012]

(a) Paramoecium and plasmodium belong to the same kingdom as that of penicillium. (b) Lichen is a composite organism formed from the symbiotic association of an algae and a protozoan. (c) Yeast used in making bread and beer is a fungus. (d) Nostoc and Anabaena are examples of protista.

13 ➤ 13. Maximum nutritional diversity is found in the group [AIPMT PRE 2012]

(a) Fungi (b) Animalia (c) Monera (d) Plantae

14 ➤ 14. Pigment containing membranous extensions in some cyanobacteria are [AIPMT PRE 2013]

(a) Heterocysts (b) Basal bodies (c) Pneumatophores (d) Chromatophores

15 ➤ 15. The five kingdom system of classification suggested by R. H. Whittaker is not based on [AIPMT PRE 2014]

(a) Presence or absence of a well defined nucleus (b) Mode of reproduction (c) Mode of nutrition (d) Complexity of body organization

16 ➤ 16. Which one of the following fungi contains hallucinogens? [AIPMT PRE 2014]

(a) Morchella esculenta (b) Amanita muscaria (c) Neurospora sp. (d) Ustilago sp.

17 ➤ 17. Archaebacteria differ from eubacteria in [AIPMT PRE 2014]

(a) Cell membrane structure (b) Mode of nutrition (c) Cell shape (d) Mode of reproduction

18 ➤ 18. Anoxygenic photosynthesis is the characteristic of [AIPMT PRE 2014]

(a) Rhodospirillum (b) Spirogyra (c) Chlamydomonas (d) Ulva

19 ➤ 19. Which of the following shows coiled RNA strand and capsomeres? [AIPMT PRE 2014]

(a) Polio virus (b) Tobacco mosaic virus (c) Measles virus (d) Retrovirus

20 ➤ 20. Viruses have [AIPMT PRE 2014]

(a) DNA enclosed in a protein coat (b) Prokaryotic nucleus (c) Single chromosome (d) Both DNA and RNA

21 ➤ 21. A location with luxuriant growth of lichen on the trees indicated that the [AIPMT PRE 2014]

(a) Tress are very healthy (b) Trees are heavily infested (c) Location is highly polluted (d) Location is not polluted

22 ➤ 22. Which of the following matches is correct? [AIPMT 2015]

(a) Phytophthora → Aseptate mycelium → Basidiomycetes (b) Alternania → Sexual reproduction absent → Deuteromycetes (c) Mucor → Reproduction by conjugation → Ascomycetes (d) Agaricus → Parasitic fungus → Basidiomycetes

23 ➤ 23. The guts of cow and buffalo posses [AIPMT 2015]

(a) Fucus spp (b) Chlorella spp (c) Methanogens (d) Cyanobacteria

24 ➤ 24. The imperfect fungi which are decomposers of litter and help in mineral cycling belong to [RE-AIPMT 2015]

(a) Basidiomycetes (b) Phycomycetes (c) Ascomycetes (d) Deuteromycetes

25 ➤ 25. Pick up the wrong statement: [RE-AIPMT 2015]

(a) Protista have photosynthetic and heterotrophic modes of nutrition. (b) Some fungi are edible. (c) Nuclear membrane is present in Monera. (d) Cell wall is absent in Animalia.

26 ➤ 26. Chromatophores take part in [RE-AIPMT 2015]

(a) Growth (b) Movement (c) Respiration (d) Photosynthesis

27 ➤ 27. Which of the following disease is caused by a protozoan? [RE-AIPMT 2015]

(a) Influenza (b) Babesiosis (c) Blastomycosis (d) Syphilis

28 ➤ 28. Select the wrong statement [RE-AIPMT 2015]

(a) W.M. Stanley showed that viruses could be crystallized (b) The term ‘contagium vivum fluidum’ was coined by M.W. Beijerinek (c) Mosaic disease in tobacco and AIDS in human being are caused by viruses (d) The viroids were discovered by D.J. Ivanowsky

29 ➤ 29. Cell wall is absent in [RE-AIPMT 2015]

(a) Funaria (b) Mycoplasma (c) Nostoc (d) Aspergillus

30 ➤ 30. In which group of organisms the cell walls from two thin overlapping shells which fit together? [RE-AIPMT 2015]

(a) Euglenoids (b) Dianoflagellates (c) Slime moulds (d) Chrysophytes

31 ➤ 31. Choose the wrong statement: [RE-AIPMT 2015]

(a) Neurospora is used in the study of biochemical genetics (b) Morels and Buffles are poisonous mushrooms (c) Yeast is unicellular and useful in fermentation (d) Penicillium is multicellular and produces antibiotics

32 ➤ 32. Which of the following statements is wrong for viroids? [NEET - I, 2016]

(a) They lack a protein coat (b) They causes infections (c) They are smaller than viruses (d) Their RNA is of high molecular weight

33 ➤ 33. Which of the following statements is wrong? [NEET - I, 2016]

(a) Cyanobacteria are also called blue-green algae. (b) Golden algae are also called desmids. (c) Eubacteria are also called false bacteria. (d) Phycomycetes are also called algal fungi.

34 ➤ 34. Which of the following would appear as the pioneer organisms on bare rocks? [NEET - I, 2016]

(a) Lichens (b) Mosses (c) Liverworts (d) Green algae

35 ➤ 35. Chrysophytes, Euglenoids, Dinoflagellates and Slime moulds are included in the kingdom: [NEET - I, 2016]

(a) Monera (b) Protista (c) Fungi (d) Animalia

36 ➤ 36. The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the: [NEET - I, 2016]

(a) Halophiles (b) Thermoacidophiles (c) Methanogens (d) Eubacteria

37 ➤ 37. Which one of the following is wrong for fungi? [NEET - II, 2016]

(a) All fungi possess a purely cellulosic cell wall (b) They are heterotrophic (c) They are both unicellular and multicellular (d) They are eukaryotic

38 ➤ 38. Methanogens belong to [NEET - II, 2016]

(a) Archaebacteria (b) Dianoflagellates (c) Slime moulds (d) Eubacteria

39 ➤ 39. Select the wrong statement: [NEET - II, 2016]

(a) ‘Diatomaceous earth’ is formed by the cell walls of diatoms (b) Diatoms are chief producers in the oceans (c) Diatoms are chief microscopic and float passively in water (d) The walls of diatoms are easily destructible

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