NEETBotanyPhotosynthesis in Higher Plants
What provides the energy for the conformational change in the CF1 particle of ATP synthase?
Options
- AThe absorption of light
- BThe breakdown of the proton gradient
- CThe synthesis of NADPH
- DThe movement of electrons
Correct answer
B. The breakdown of the proton gradient
Step-by-step solution
The proton gradient is broken down due to the movement of protons across the membrane to the stroma through the transmembrane channel of the CF0 of the ATP synthase. The ATP synthase enzyme consists of two parts: one called the CF0 is embedded in the thylakoid membrane and forms a transmembrane channel that carries out facilitated diffusion of protons across the membrane. The other portion is called CF1 and protrudes on the outer surface of the thylakoid membrane on the side that faces the stroma. The break down of