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Plant Physiology — quick quiz

5 real NSEB questions on Plant Physiology. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.

Question 1 of 4

HARD

In C4 plants, the primary CO₂ acceptor in mesophyll cells is phosphoenolpyruvate (PEP), and the first stable product is a 4-carbon compound. Which enzyme catalyzes this initial fixation step, and what is the 4-carbon product formed?