Photosynthesis is the process by which plants, some bacteria, and some protistans convert light energy (sun) into chemical energy (food). These organisms are referred to as the Producers and they are vitally important to all life on earth. They produce food for themselves and to feed the Consumers who cannot make their own food. Oxygen, also essential for life, is a by-product of photosynthesis.

The food web describes how the energy produced by plants flows through an ecosystem. In this tutorial, you will learn the structures and processes involved in photosynthesis.

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