Questions: In which two parts of a chloroplast does photosynthesis take place?

In which two parts of a chloroplast does photosynthesis take place?
Transcript text: In which two parts of a chloroplast does photosynthesis take place?
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Photosynthesis in chloroplasts takes place in two main parts: the thylakoid membranes and the stroma.

  1. Thylakoid Membranes (Granum): The thylakoid membranes are where the light-dependent reactions of photosynthesis occur. These reactions require light energy, which is absorbed by chlorophyll and other pigments in the thylakoid membranes. The energy is then used to split water molecules, releasing oxygen, and to produce ATP and NADPH, which are energy carriers.

  2. Stroma: The stroma is the fluid-filled space surrounding the thylakoids in the chloroplast. It is where the light-independent reactions, also known as the Calvin cycle, take place. During these reactions, ATP and NADPH produced in the thylakoid membranes are used to convert carbon dioxide into glucose.

In summary, photosynthesis occurs in the thylakoid membranes (granum) and the stroma of the chloroplast.

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