Multiple Choice Questions

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Which of the following are found in extreme saline
conditions?

  • Archaebacteria

  • Eubacteria

  • Cyanobacteria

  • Cyanobacteria


A.

Archaebacteria

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Which one of the following statements is correct with reference to enzymes?

  • Apoenzyme = Holoenzyme + Coenzyme

  • Holoenzyme = Apoenzyme + Coenzyme

  • Coenzyme = Apoenzyme + Holoenzyme

  • Coenzyme = Apoenzyme + Holoenzyme

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Adult human RBCs are enucleate. Which of the following statement(s) is/are most appropriate explanation for this feature?

(a) They do not need to reproduce
(b) They are somatic cells
(c) They do not metabolize
(d) All their internal space is available for oxygen
transport

  • Only (d)

  • Only (a)

  • (a), (c) and (d)

  • (a), (c) and (d)

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The hepatic portal vein drains blood to liver from

  • Heart

  • Stomach

  • Kidneys

  • Kidneys

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Which cells of 'Crypts of Lieberkuhn' secrete antibacterial lysozyme?

  • Argentaffin cells

  • Paneth cells

  • Zymogen cells

  • Zymogen cells

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Select the mismatch :

  • Frankia – Alnus

  • Rhodospirillum – Mycorrhiza

  • Anabaena – Nitrogen fixer

  • Anabaena – Nitrogen fixer

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A temporary endocrine gland in the human body is

  • Pineal gland

  • Corpus cardiacum

  • Corpus luteum

  • Corpus luteum

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Which of the following is made up of dead cells?

  • Xylem parenchyma

  • Collenchyma

  • Phellem

  • Phellem

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Which of the following options gives the correct sequence of events during mitosis?

  • Condensation - nuclear membrane disassembly
    - crossing over - segregation - telophase

  • Condensation - nuclear membrane disassembly
    -arrangement at equator - centromere
    division - segregation - telophase

  • Condensation - crossing over - nuclear
    membrane disassembly - segregation -
    telophase

  • Condensation - crossing over - nuclear
    membrane disassembly - segregation -
    telophase

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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?

  • Bacillus

  • Pseudomonas

  • Mycoplasma

  • Mycoplasma

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