Q. Proton gradient is very important across the membrane because
A) Building up of proton gradient release energy
B) Building up of proton gradient increase the pH towards lumen side of thylakoid membrane
C) Breakdown of proton gradient release $CO_{2}$
D) Breakdown of proton gradient release energy
Explanation
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
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.