This is a picture of my friend's rat. Rats cannot make their own food, therefore they must consume organic substances and use cellular respiration to breakdown the glucose. Cellular respiration is the process of oxidizing food molecules to carbon dioxide and water. It is how animals get energy because they can not preform photosynthesis. The energy released is in the form of ATP. Cellular respiration has two phases, glycolysis, the breakdown of glucose to pyruvic acid, and the oxidation of pyruvic acid to carbon dioxide and water.
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