The production of ATP in chloroplasts and mitochondria differs in which of the following ways?
A)The protons move into the stroma in chloroplasts and out of the mitochondria.
B)In mitochondria,the force is expressed primarily as an electrochemical potential; in chloroplasts,it is largely,if not exclusively,due to a pH gradient.
C)In mitochondria,the force is expressed primarily as a pH gradient; in chloroplasts,it is largely,if not exclusively,due to an electrochemical potential.
D)The protons move into the intermembrane space in chloroplasts and into the thylakoid lumen in mitochondria.
E)The protons move into the matrix in mitochondria and into the cytoplasm in chloroplasts.

Question

Quizplus · Accepted Answer

In mitochondria, the force that drives ATP production is primarily expressed as an electrochemical potential, which is generated by the movement of protons across the inner mitochondrial membrane. In contrast, in chloroplasts, the force that drives ATP production is largely due to a pH gradient, which is established across the thylakoid membrane. While there may be some electrochemical potential present as well, it is not the primary mechanism for generating the proton motive force in chloroplasts.

The Production of ATP in Chloroplasts and Mitochondria Differs in Which