The light reactions of photosynthesis occur in the

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The light reactions of photosynthesis occur on the thylakoid membranes of the chloroplasts. This is where the pigments involved in photosynthesis (such as chlorophyll) are located, and where light energy is converted into chemical energy in the form of ATP and NADPH. The stroma is where the Calvin Cycle, or dark reactions, occur. The outer chloroplast membrane and rubisco are not directly involved in the light reactions.

The Light Reactions of Photosynthesis Occur in the