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ATP Synthesis in Photosynthesis and Cellular Respiration

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During the light reactions of photosynthesis, ATP is synthesized by a mechanism similar to that of cellular respiration. Which of the following describes this mechanism?
A

By the formation of a water molecule from protons and electrons

B

By the citric acid cycle and the reduction of NAD+

C

By energy derived from photosystems I and II

D

By a proton concentration gradient and the action of ATP synthase

E

By the splitting of a water molecule and the movement of electrons through ATP synthase

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