Q. Proton gradient is broken down due to

A) Movement of electrons across the membrane to stroma
B) Movement of electrons across the membrane to lumen
C) Movement of proton across the membrane to lumen
D) Movement of proton across the membrane to stroma
Explanation

Movement of protons across the membrane to stroma. Proton gradient is important because it is the break down of this gradient that leads to release of energy. The gradient is broken down due to movement of protons across the membrane to the stroma through the transmembrane channel of the $F_{0}$ of the ATPase. The energy released during the breaking down of proton gradient is used in formation of ATP

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.