1. The green color of leaves is due to chlorophyll. These green-pigmented molecules live in the chloroplasts of plant cells and absorb visible light for photosynthesis. Chlorophyll molecules absorbs all wavelengths of light except green but mainly absorb red and blue wavelengths. Plants appear green because chlorophyll reflects green wavelengths of light.
2. The two main parts of a chloroplast are the grana and stroma.Grana are stacks of disc-shaped compartments that are enclosed within a membrane. These discs are called thykaloids and are the site where light-dependent reactions occur. The fluid surrounding the grana is the stroma. The light-independent reactions take place in the stroma.00:0112:50Brought to you by Sciencing
3. The first stage of photosynthesis captures energy from the sun to break down water molecules. The light-dependent reactions harness and transfer energy by splitting apart hydrogen and oxygen atoms. The electrons move through the electron transport chain where they are passed along a series of proteins to eventually make ATP, the energy used in the next stage of photosynthesis.
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