MCQ
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 p$H$ towards lumen side of thylakoid membrane
  • C
    Breakdown of proton gradient release $CO _{2}$
  • Breakdown of proton gradient release energy

Answer

Correct option: D.
Breakdown of proton gradient release energy
d
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 $ATP$ase. The energy released during the breaking down of proton gradient is used in formation of $ATP$

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