MCQ practice · SSC Biology Board questions · Chapter 4: Bioenergetics
In respiration that occurs in the absence of oxygen-
- i. the respiratory substance is partly oxidised
- ii. lactic acid is produced
- iii. a large amount of energy is produced
Think it through first, then pick an option.
- a i and ii
- b i and iii
- c ii and iii
- d i, ii and iii
Answer and explanation
Correct answer: a i and ii
In anaerobic respiration the respiratory substance is partly oxidised (i) and lactic acid can be produced (ii); iii is false.
Why the other options are wrong
- b i and iii: iii is false: the energy is little, not large; and the true ii is left out.
- c ii and iii: iii is false: a large amount of energy comes from aerobic respiration; and the true i is left out.
- d i, ii and iii: iii is false, so all three cannot be correct.
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