Practice question

MCQ

Question

What is the key adaptation of C₄ plants that helps them avoid photorespiration?

Options

Choose one · Correct answer highlighted

They perform photosynthesis only at night They use PEP carboxylase for initial CO₂ fixation Correct They lack bundle sheath cells They do not require ATP for CO₂ fixation

Explanation

C₄ plants use PEP carboxylase to initially fix CO₂, reducing photorespiration by maintaining high CO₂ concentration in bundle sheath cells.

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