Science Weblecture for Unit 59
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Cellular respiration is the process by which the mitochondria releases of stored energy so that the cell can do work—form other molecules, build proteins, move chemicals through its membrane. The cellular respiration reaction is also made of many steps, which are often broken down into two phases: the breakdown of glucose to pyruvic acid, followed by the Krebs cycle. The overall cellular respiration reaction is:
Notice that this is just the photosynthetic reaction in reverse! As with the photosynthesis reaction, each step has its own enzyme.
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