MCQ
ATP Synthase has a channel that allows diffusion of ____________ back across the membrane
  • A
    poroton
  • B
    $H ^{+}$
  • C
    ATP
  • Both (1) and (2)

Answer

Correct option: D.
Both (1) and (2)
(D)
Chemiosmosis requires a membrane, a proton pump, a proton gradient and ATP synthase. Energy is used to pump protons across a membrane, to create a gradient or a high concentration of protons within the thylakoid lumen. ATP synthase has a channel that allows diffusion of protons back across the membrane; this releases enough energy to activate ATP synthase enzyme that catalyses the formation of ATP.

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