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MCQ practice · SSC Biology Board questions · Chapter 4: Bioenergetics

Dhaka Board 2022

Anaerobic respiration is generally seen-

  1. i. in yeast
  2. ii. in algae
  3. iii. in bacteria

Think it through first, then pick an option.

  1. a i and ii
  2. b ii and iii
  3. c i and iii
  4. d i, ii and iii
Answer and explanation

Correct answer: c i and iii

Anaerobic respiration occurs only in some microbes such as yeast (i) and bacteria (iii).

Why the other options are wrong

  • a i and ii: ii is false: algae do not generally respire anaerobically; and iii (bacteria) is left out.
  • b ii and iii: ii is false: algae respire aerobically; and i (yeast) is left out.
  • d i, ii and iii: ii is false: the book does not name algae, so all three cannot be correct.