How does ATP synthase obtain the energy to produce ATP? A) Hydrogen ions flow down a concentration gradient from the thylakoid space to the stroma through ATP synthase, releasing energy that can be used to produce ATP from ADP + P _i. B) Water splits, releasing electrons that flow from the stroma to the thylakoid space and attach to the active site of ATP synthase. C) Electrons from the reaction site center of photosystem II are funneled to ATP synthase, which uses the energy to produce ATP from ADP + P _i. D) Hydrogen ions in the thylakoid space combine with electrons from the stroma at ATP synthase, releasing energy that can be used to produce ATP from ADP + P _i. E) A hydrogen ion from NADPH is used by ATP synthase to power the production of ATP from ADP + P _i, and an electron is released, splitting water.

Question

Quizplus · Accepted Answer

ATP synthase produces ATP by utilizing the energy released when hydrogen ions (H+) flow down their concentration gradient from the thylakoid space into the stroma in chloroplasts (or from the intermembrane space into the matrix in mitochondria). This process is known as chemiosmosis.

How Does ATP Synthase Obtain the Energy to Produce ATP