In what organelle does photosynthesis take place?

Question: In what organelle does photosynthesis take place?

Photosynthesis is the process by which plants, algae and some bacteria convert light energy into chemical energy. The chemical energy is stored in the form of sugars, which can be used by the organisms for various purposes. Photosynthesis is essential for life on Earth, as it provides oxygen and organic matter for other living beings.

But where does photosynthesis take place inside the cells of these organisms? The answer is: in a specialized organelle called the chloroplast. Chloroplasts are green structures that contain chlorophyll, a pigment that absorbs light and transfers it to the molecules that carry out the photosynthetic reactions. Chloroplasts have two membranes: an outer membrane that surrounds the whole organelle, and an inner membrane that forms a network of flattened sacs called thylakoids. The thylakoids are arranged in stacks called grana, and they are the site of the light-dependent reactions of photosynthesis. These reactions produce ATP and NADPH, which are used to power the light-independent reactions that take place in the stroma, the fluid-filled space between the thylakoids and the inner membrane. The stroma is where the Calvin cycle occurs, which converts carbon dioxide into sugars.

In summary, photosynthesis takes place in the chloroplasts, which are composed of two membranes, thylakoids and stroma. The chloroplasts are responsible for capturing light energy and converting it into chemical energy that can be used by the cells.

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