Which products formed during the light reaction of photosynthesis are used to drive the dark reaction?

Where is NADP reductase enzyme located in the chloroplast? What is the role of this enzyme in proton gradient development?

ATPase enzyme consists of two parts. What are those parts? How are they arranged in the thylakoid membrane? Conformational change occurs in which part of the enzyme?

What is the basis for designating C3 and C4 pathways of photosynthesis?

Succulents are known to keep their stomata closed during the day to check transpiration. How do they meet their photosynthetic CO₂ requirements?