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NEET Biology · Biological Classification · Set 1 (Q1-30)

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  1. 1.
    The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorised as:
    1. (1)Cyanobacteria
    2. (2)Archaebacteria
    3. (3)Chemosynthetic autotrophs
    4. (4)Heterotrophic bacteria
  2. 2.
    Which of the following shows coiled RNA strand and capsomeres?
    1. (1)Polio virus
    2. (2)Tobacco mosaic virus
    3. (3)Measles virus
    4. (4)Retrovirus
  3. 3.
    Which of the following statements is correct?
    1. (1)Fusion of protoplasms between two motile or nonmotile gametes is called plasmogamy.
    2. (2)Organisms that depend on living plants are called saprophytes.
    3. (3)Some of the organisms can fix atmospheric nitrogen in specialized cells called sheath cells.
    4. (4)Fusion of two cells is called Karyogamy.
  4. 4.
    The imperfect fungi which are decomposers of litter and help in mineral cycling belong to
    1. (1)Basidiomycetes
    2. (2)Phycomycetes
    3. (3)Ascomycetes
    4. (4)Deuteromycetes
  5. 5.
    Which of the following is a correct statement?
    1. (1)Mycoplasma have DNA, Ribosome and cell wall
    2. (2)Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera
    3. (3)Bacteria are exclusively heterotrophic organisms
    4. (4)Slime moulds are saprophytic organisms classified under Kingdom Monera
  6. 6.
    Which one of the following is wrong for fungi?
    1. (1)All fungi possess a purely cellulosic cell wall
    2. (2)They are heterotrophic
    3. (3)They are both unicellular and multicellular
    4. (4)They are eukaryotic
  7. 7.
    Which of the following disease is caused by a protozoan?
    1. (1)Influenza
    2. (2)Babesiosis
    3. (3)Blastomycosis
    4. (4)Syphilis
  8. 8.
    Maximum nutritional diversity is found in the group
    1. (1)Fungi
    2. (2)Animalia
    3. (3)Monera
    4. (4)Plantae
  9. 9.
    Which of the following is correct about viroids?
    1. (1)They have free RNA without protein coat.
    2. (2)They have DNA with protein coat.
    3. (3)They have free DNA without protein coat.
    4. (4)They have RNA with protein coat.
  10. 10.
    The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the:
    1. (1)Halophiles
    2. (2)Thermoacidophiles
    3. (3)Methanogens
    4. (4)Eubacteria
  11. 11.
    Which of the following statements is wrong for viroids?
    1. (1)They lack a protein coat
    2. (2)They causes infections
    3. (3)They are smaller than viruses
    4. (4)Their RNA is of high molecular weight
  12. 12.
    Organisms called methanogens are most abundant in a
    1. (1)Cattle yard
    2. (2)Polluted stream
    3. (3)Hot spring
    4. (4)Sulphur rock
  13. 13.
    Which of the following is incorrect about Cyanobacteria?
    1. (1)They lack heterocysts
    2. (2)They often form blooms in polluted water bodies
    3. (3)They have chlorophyll 'a ' similar to green plants
    4. (4)They are photoautotrophs
  14. 14.
    A location with luxuriant growth of lichen on the trees indicated that the
    1. (1)Tress are very healthy
    2. (2)Trees are heavily infested
    3. (3)Location is highly polluted
    4. (4)Location is not polluted
  15. 15.
    In which group of organisms the cell walls from two thin overlapping shells which fit together?
    1. (1)Euglenoids
    2. (2)Dinoflagellates
    3. (3)Slime moulds
    4. (4)Chrysophytes
  16. 16.
    Which of the following statements is wrong?
    1. (1)Cyanobacteria are also called blue-green algae.
    2. (2)Golden algae are also called desmids.
    3. (3)Eubacteria are also called false bacteria.
    4. (4)Phycomycetes are also called algal fungi
  17. 17.
    Which of the following matches is correct?
    1. (1)Phytophthora → Aseptate mycelium → Basidiomycetes
    2. (2)Alternania → Sexual reproduction absent → Deuteromycetes
    3. (3)Mucor → Reproduction by conjugation → Ascomycetes
    4. (4)Agaricus → Parasitic fungus → Basidiomycetes
  18. 18.
    Some hyperthermophilic organisms that grow in highly acidic (pH = 2) habitats belong to the two roups called
    1. (1)Eubacteria and archaea
    2. (2)Cyanobacteria and diatoms
    3. (3)Protists and mosses
    4. (4)Liverworts and yeasts
  19. 19.
    Which one of the following fungi contains hallucinogens?
    1. (1)Morchella esculenta
    2. (2)Amanita muscaria
    3. (3)Neurospora sp.
    4. (4)Ustilago sp.
  20. 20.
    Anoxygenic photosynthesis is the characteristic of
    1. (1)Rhodospirillum
    2. (2)Spirogyra
    3. (3)Chlamydomonas
    4. (4)Ulva
  21. 21.
    Select the correct combination of the statements (A-D) regarding the characteristics of certain organisms
    (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:
    1. (1)(B) and (C)
    2. (2)(A), (B) and (C)
    3. (3)(B), (C) and (D)
    4. (4)(A), (B) and (D)
  22. 22.
    How many organisms in the list given below are autotrophs?
    Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Saccharomyces, Trypanosoma, Porphyra, Wolffia
    1. (1)Five
    2. (2)Six
    3. (3)Three
    4. (4)Four
  23. 23.
    Given below is the diagram of a bacteriophage. In which one of the options all four parts A, B, C and D are correct?
    1. (1)A: Tail fibres, B: Head, C: Sheath, D: Collar
    2. (2)A: Sheath, B: Collar, C: Head, D: Tail fibres
    3. (3)A: Head, B: Sheath, C: Collar, D: Tail fibres
    4. (4)A: Collar, B: Tail fibres, C: Head, D: Sheath
  24. 24.
    Methanogens belong to
    1. (1)Archaebacteria
    2. (2)Dinoflagellates
    3. (3)Slime moulds
    4. (4)Eubacteria
  25. 25.
    Pick up the wrong statement:
    1. (1)Protista have photosynthetic and heterotrophic modes of nutrition.
    2. (2)Some fungi are edible.
    3. (3)Nuclear membrane is present in Monera.
    4. (4)Cell wall is absent in Animalia.
  26. 26.
    Choose the wrong statement:
    1. (1)Neurospora is used in the study of biochemical genetics
    2. (2)Morels and truffles are poisonous mushrooms
    3. (3)Yeast is unicellular and useful in fermentation
    4. (4)Penicillium is multicellular and produces antibiotics
  27. 27.
    Infectious proteins are present in
    1. (1)Gemini viruses
    2. (2)Prions
    3. (3)Viroids
    4. (4)Satellite viruses
  28. 28.
    Which statement is wrong for viruses?
    1. (1)All are parasites.
    2. (2)All of them have helical symmetry.
    3. (3)They have the ability to synthesize nucleic acids and proteins.
    4. (4)Antibiotics have no effect on them.
  29. 29.
    Viruses have
    1. (1)DNA enclosed in a protein coat
    2. (2)Prokaryotic nucleus
    3. (3)Single chromosome
    4. (4)Either DNA and RNA
  30. 30.
    Cell wall is absent in]
    1. (1)Funaria
    2. (2)Mycoplasma
    3. (3)Nostoc
    4. (4)Aspergillus