Which of the following contributes to the electrochemical gradient that exists across the thylakoid membrane during photosynthesis?

Question

Quizplus · Accepted Answer

All of the choices contribute to the electrochemical gradient across the thylakoid membrane. The electron transport chain (A) facilitates the movement of electrons that drives the pumping of H+ ions. The splitting of water (B) directly contributes H+ ions to the thylakoid lumen. The depletion of H+ in the stroma (C) during NADPH production decreases the H+ concentration outside the thylakoid, enhancing the gradient. The active pumping of H+ into the thylakoid lumen (D) by electron transport proteins directly increases the H+ concentration inside, further contributing to the gradient.

Which of the Following Contributes to the Electrochemical Gradient That