Q:

Where in the cell does photosynthesis occur?

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Quick Answer

Photosynthesis takes place in the chloroplasts of the mesophyll cells found in the leaves of plants. The chloroplast is an organelle made up of different structures, such as an outer membrane, inner membrane, stroma, thylakoids and grana. While the stroma is the matrix of chloroplasts, thylakoids are structures that contain chlorophyll molecules on its surface.

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Full Answer

Grana are thylakoid stacks. Photosynthesis involves the chemical reaction in which carbon dioxide, water and light energy are converted into oxygen and sugar. However, photosynthesis is a two part process that entails a light and a dark reaction. The light reaction occurs in the thylakoid membrane. This is where light energy is converted into chemical energy. The dark reaction happens in the stroma and carbon dioxide is converted into sugar.

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