1. Absorption of Light: This is the first stage of photosynthesis and it involves the absorption of light energy by the photosynthetic pigments such as chlorophyll, which are located within the chloroplasts of the plant cells.
2. Conversion of Light Energy: The light energy absorbed in stage one is then converted into chemical energy in the form of ATP and NADPH. This conversion takes place during the light-dependent reactions that occur within the thylakoid membranes of the chloroplasts.
3. Production of Organic Molecules: The ATP and NADPH produced during the light-dependent reactions are then used to power the light-independent reactions of photosynthesis. During this stage, carbon dioxide is fixed into organic molecules such as glucose using enzymes such as RuBisCO.
4. Release of Oxygen: The final stage of photosynthesis involves the release of oxygen as a byproduct of the light-dependent reactions. During this stage, water is split into oxygen, hydrogen ions, and electrons, which are then used to power the production of ATP and NADPH.
4 stages of photosynthesis
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