MCQ practice · SSC Biology Board questions · Chapter 4: Bioenergetics
The first stable compound of which of the following plants is oxaloacetic acid?
Think it through first, then pick an option.
- a Amaranthus
- b Sunflower
- c Tomato
- d Jute
Answer and explanation
Correct answer: a Amaranthus
Amaranthus is a C4 plant, so its first stable compound is oxaloacetic acid.
Why the other options are wrong
- b Sunflower: Sunflower is a C3 plant; its first stable compound is phosphoglyceric acid.
- c Tomato: Tomato is a C3 plant, not in the book's C4 list.
- d Jute: Jute is not a C4 example in the book; it is C3.
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