In C4 plants,the light reactions will stop during the daytime when the supply of what compound is limited?

Question

Quizplus · Accepted Answer

The supply of NADPH and ATP (both generated during the light reactions) is limited in C4 plants during the daytime when the stomata are closed to conserve water. This inhibits the light reactions and results in the accumulation of intermediates that are used in the carbon concentrating mechanism of these plants. Therefore, choice B (NADP⁺) is the correct answer, as it refers to the limited supply of NADPH and ATP. Choices A (chlorophyll a), C (H₂O), D (CO₂), and E (O₂) are not relevant to the question.

In C4 Plants,the Light Reactions Will Stop During the Daytime