Which adjustment prevents photorespiration when C3 plants experience high temperatures?

💡 Explanation

When temperatures rise, photorespiration increases because RuBisCO binds more readily to O2 than CO2; thus, stomatal closure regulates gas exchange. Hence, increasing closure minimizes water loss and also limits CO2 entry, reducing photorespiration over standard oxygenation, rather than increased affinity, enhanced ATP synthesis, or elevated water uptake, the first of which is physiologically fixed.

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