Where are the proteins of the electron transport chain located?
A) mitochondrial outer membrane
B) mitochondrial inner membrane
C) mitochondrial intermembrane space
D) mitochondrial matrix

Question

Quizplus · Accepted Answer

The proteins of the electron transport chain (ETC) are located in the mitochondrial inner membrane. This is where the electron transport chain (ETC) takes place, and where the electron carriers, such as NADH and FADH2, transfer electrons to the protein complexes of the ETC, generating a proton gradient that drives ATP production. The other options are not correct as the mitochondrial outer membrane and intermembrane space do not contain the ETC proteins, and the mitochondrial matrix is the location of the Krebs cycle, which is not directly involved in the electron transport chain.

Where Are the Proteins of the Electron Transport Chain Located