8.4: Photosystem Organization
- Page ID
- 75169
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- 8.4.1: The Light-Dependent Reactions of Photosynthesis
- How can light be used to make food? It is easy to think of light as something that exists and allows living organisms, such as humans, to see, but light is a form of energy. Like all energy, light can travel, change form, and be harnessed to do work. In the case of photosynthesis, light energy is transformed into chemical energy, which autotrophs use to build carbohydrate molecules. However, autotrophs only use a specific component of sunlight .