Metabolism refers to the physical and chemical processes that occur in the body responsible for normal functioning, keeping us alive. Such functions include breathing, blood circulation and nerve function. To carry out these processes, our body converts energy from the food we eat. The total amount of energy your body burns is... Metabolism refers to the physical and chemical processes that occur in the body responsible for normal functioning, keeping us alive. Such functions include breathing, blood circulation and nerve function. To carry out these processes, our body converts energy from the food we eat. The total amount of energy your body burns is...

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