The main purpose of the light-dependent reactions is to produce ATP and NADPH, which are needed for the synthesis of glucose in the Calvin cycle.
LIGHT REACTION OF PHOTOSYNTHESIS:
- Photosynthesis is the process by which green plants make their own food using energy from sunlight.
- Photosynthesis takes place in the chloroplast organelle and it consists of two important stages namely: light dependent reactions and light independent reactions.
- Light dependent reaction takes place in the thylakoid membrane of the chloroplast and strictly occurs in the presence of light.
- The light dependent reaction uses the electron transport chain (ETC) to produce ATP (energy) and NADPH (electron carrier) molecules.
- These two molecules are major requirements for the other phase of photosynthesis called CALVIN CYCLE to occur.
- Therefore, the main purpose of the light-dependent reactions is to produce ATP and NADPH, which are needed for the synthesis of glucose in the Calvin cycle.
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