In mitochondria, chemiosmosis translocates protons from the matrix into the intermembrane space, whereas in chloroplasts, chemiosmosis translocates protons from
A) the stroma to the photosystem II.
B) the matrix to the stroma.
C) the stroma to the thylakoid space.
D) the intermembrane space to the matrix.
E) the thylakoid space to the stroma.

Question

Quizplus · Accepted Answer

In chloroplasts, chemiosmosis translocates protons from the stroma to the thylakoid space. This creates a proton gradient that powers ATP synthesis during photosynthesis.

In Mitochondria, Chemiosmosis Translocates Protons from the Matrix into the Intermembrane