3. Which one of the following statements about photophosphorylation is false ? A

Question

3. Which one of the following statements about photophosphorylation is false?

A. It can be uncoupled from electron flow by agents that dissipate the proton gradient.

B. The difference in pH between the luminal and stromal side of the thylakoid membrane is 3 pH units.

C. The reaction centers, electron carriers, and ATP-forming enzymes are located in the thylakoid membrane.

D. The number of ATPs formed per oxygen molecule is about three.

E. The luminal side of the thylakoid membrane has a higher pH than the stromal side.

Explanation / Answer

E)The pH in the stroma is around 8 while in the lumen(interior ) it is 5.

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