Ferredoxin is a structural component of which of the following?

Explain cyclic photophosphorylation.

The entire process of photosynthesis consists of a number of reactions. Where in the cell do each of these take place? Synthesis of $ATP$ and $NADPH$ occurs in/at:

$DCMU$ ($3$-($3$,$4$-dichlorophenyl)$-1,1-$dimethylurea) is a chemical that acts as an inhibitor of photosynthesis. What is its specific mode of action?

In cyclic photophosphorylation,which one of the following is formed?

Where are the protons found in the highest concentration within the chloroplast?