Biology MCQs with answers Page - 120

Here, you will find a collection of MCQ questions on Biology. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. The number of chloroplasts in a cell of Spirogyra is

  • (A) 1-4
  • (B) 1-8
  • (C) 1-14
  • (D) 2-8

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Q. Potato blight is caused by

  • (A) Penicillium
  • (B) Meningitis
  • (C) Smut
  • (D) Ringworm

A

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Q. Pickles, candies, jams and breads are preserved by the much of adding

  • (A) Preservattives
  • (B) Enzymes
  • (C) Minerals
  • (D) None of the above

A

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Q. Which type of bacteria get their food from dead organic matter?

  • (A) Parasitic
  • (B) Autotrophic
  • (C) Saprophytic
  • (D) None of the above

A

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Q. Heterocysts, specialised for nitrogen fixation, occur in certain

  • (A) Red brown algae
  • (B) Blue green algae
  • (C) Ferns
  • (D) Mosses

A

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Q. The number pyrenoids in Chlamydomonas is

  • (A) 1
  • (B) 2
  • (C) 3
  • (D) 4

A

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Q. Commercial agar is obtained from

  • (A) Chlorella
  • (B) Gracilaria
  • (C) Parphyro
  • (D) Volvox

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Q. Lactose is present in

  • (A) lime
  • (B) milk
  • (C) vinegar
  • (D) grapes

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Q. Excess amount of absorbed water by plants is liberated out by:

  • (A) Transpiration
  • (B) Osmosis
  • (C) Diffusion
  • (D) Evaporation

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Q. Yeast is an important source of

  • (A) invertase
  • (B) vitamin C
  • (C) vitamin B
  • (D) protein

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