- A Stroma, the fluid-filled matrix
- B Matrix found inside mitochondria
- C Thylakoid membrane, within the grana
- D Outer membrane of the chloroplast
Correct answer: C. Thylakoid membrane, within the grana
Explanation: Light reactions, including light absorption, water splitting and ATP/NADPH formation, occur on the thylakoid membranes, which contain the photosystems and electron transport chain.
Concept context
Light reactions, the Calvin cycle, C3/C4/CAM pathways, photorespiration, and factors affecting the rate of photosynthesis. One of the highest-yield NEET chapters.