Biochemistry 4th Edition by Reginald Garrett, Charles Grisham

Exercise 6

Delta pH and delta psi in the chloroplast proton-motive force
(Integrates with Chapters 20.) In mitochondria, the membrane potential ( ) contributes relatively more to (proton-motive force) than does the pH gradient ( pH). The reverse is true in chloroplasts. Why do you suppose that the proton-motive force in chloroplasts can depend more on pH than mitochondria can Why is ( ) less in chloroplasts than in mitochondria