MCQ practice · SSC Biology Board questions · Chapter 4: Bioenergetics
What applies to plants E and F?
- i. more carbohydrate is produced in plant E
- ii. the C3 and C4 cycles run together in plant F
- iii. the productivity of plant E is lower than that of plant F
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: c ii and iii
In F (C4) the Hatch-Slack and Calvin cycles run together (ii), and E's productivity is lower than F's (iii).
Why the other options are wrong
- a i and ii: i is false: plant E (C3) makes less carbohydrate, not more.
- b i and iii: i is false: E makes less carbohydrate, and the true ii is left out.
- d i, ii and iii: i is false: the C3 plant E does not make more sugar, so all three cannot be correct.
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