Question

Chemosynthetic pathway of photosynthesis occur in :-

• A. Cytosol
• B. Stroma
• C. Membrane of thylakoid
• D. Lumen

Answer 1

Answer: (D)

Lumen

The chemosynthetic pathway is the process of electron transport, It is common in both respiration and photosynthesis. Here the proton gradient is set up in the lumen of the thylakoid. The splitting of the water molecule causes movement of H${}^{+}$ across the lumen.

So, the correct option is 'Lumen'.