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Light dependent reactions happen in the thylakoid membrane of chloroplasts.
- They occur in the presence of sunlight.
- The sunlight is converted into chemical energy during these reactions.
- Chlorophyll in the plants absorb sunlight and transfers to the photosystem.
- The photosystems are responsible for photosynthesis.
Energy resulting from the photoionisation of chlorophyll is used for three things.
- Making ATP from ADP and Pi. This is called photophosphorylation.
- Making reduced NADP from NADP.
- Splitting water into protons (H+ ions), electrons and oxygen. This is called photolysis.