Unit 20C Photosynthesis and Cellular Respiration

Photosynthesis is the process that converts energy from the Sun into chemical energy that is used by living cells. Photosynthesis occurs in a variety of organisms, but most notably in plants and certain groups of bacteria. The most obvious of these are the large land plants, but the world’s oceans are also home to vast quantities of photosynthesizing microorganisms (Figure 1on the next page ... ................
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