Respiration gives organisms the energy used to survive.
Aerobic respiration is the breaking down of glucose using oxygen. The equation is:
glucose + oxygen --> carbon dioxide + water + energy
This usually takes place in mitochondria. More mitochondria is found in cells and tissues that need to respirate more, like muscles.
In animals, glucose comes from the foods that we eat, in plants, glucose comes from photosynthesis.
The energy is used for movement growth the breaking down of substances in chemical reactions building larger molecules from smaller ones.
Animals make proteins, fats and carbohydrates + build new tissues, plants make amino acids from sugars and large nutrients from smaller ones, they also comine amino acids to make proteins
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