The electron transport complexes found in the electron transport system
A) contain multiple electron transfer cofactors that facilitate electron transfer through the complexes.
B) are bound to the outer mitochondrial membrane.
C) pump protons from outside the mitochondria to the mitochondrial matrix on electron transfer.
D) absorb light energy that results in electron transfer.

Question

Quizplus · Accepted Answer

The electron transport complexes contain multiple electron transfer cofactors that facilitate electron transfer through the complexes. They are located in the inner mitochondrial membrane, not the outer, and they pump protons from the mitochondrial matrix to the intermembrane space, not the other way around. They do not absorb light energy; that is a function of photosystems in photosynthesis.

The Electron Transport Complexes Found in the Electron Transport System