Photosynthese - was ist das noch mal genau?

Photosynthesis – what exactly is it?

The word comes from the Greek (photos = light, synthesis = composition). Photosynthesis takes place in certain plant cells: These are mainly located in the upper and green parts of a plant and contain chloroplasts. These are organelles, i.e. small organs that also produce the green plant pigment chlorophyll (from the Greek chloros = green).

Sometimes there are just a few, sometimes hundreds of chloroplasts in a cell. A chloroplast is just 5 to 6 pm (micrometers) in size. In our illustration you can see one of these tiny creatures at work:

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