Question

Which statement about photosynthesis is false?

• A. The electron carriers involved in photophosphorylation are located on the thylakoid membranes
• B. Photosynthesis is a redox process, in which water is oxidised and carbon dioxide is reduced
• C. The enzymes required for carbon fixation are located only in the grana of chloroplasts
• D. In green plants, both PS-I and PS-II are required for the formation of $NADPH+H^{+}$

Answer 1

The correct option is C The enzymes required for carbon fixation are located only in the grana of chloroplasts

The carbon dioxide fixation that takes place during the light independent phase (Dark reaction) of photosynthesis occurs in the stroma of chloroplasts,as it has all the essential enzymes for fixation of carbon dioxide and synthesis of sugar.
The light dependent reaction of photosynthesis is the process that takes place in the grana of chloroplasts. Hence the third statement is incorrect.
All of the rest of the statements are correct. Hence, the answer is C.