Photosystems
Asked by Parvati Parvati · 2 years ago
What are photosystems and how do they function in the light reaction?
1 Answer
Photosystems are protein complexes in the thylakoid membrane that capture light energy. There are two types:
- Photosystem I (PSI): Contains P700 chlorophyll a molecules
- Photosystem II (PSII): Contains P680 chlorophyll a molecules
- Absorbing light energy
- Exciting electrons to a higher energy state
- Passing these excited electrons through an electron transport chain
- Generating ATP and NADPH for use in the Calvin cycle
NEET Faculty · 2 years ago
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