Question

unit 2 exam 2025-26
where do the light - dependent reactions take place?
o in the stroma
o in the mitochndria
o within the thylakoid membranes
o oly in the chlorophyll molecules

Explanation:

In photosynthesis, light - dependent reactions occur where light energy is captured and converted into chemical energy in the form of ATP and NADPH. These reactions take place within the thylakoid membranes of chloroplasts. The stroma is where the light - independent reactions (Calvin cycle) occur. Mitochondria are involved in cellular respiration, not photosynthesis. Chlorophyll molecules are part of the thylakoid membranes but the reactions don't occur only in them but in the whole thylakoid membrane structure.

Answer:

C. within the thylakoid membranes