Enzymes

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Chemical reactions happen all the time. Metabolism describes all the reactions in a cell or the body. The energy transferred by respiration in cells is used for the continual enzyme controlled processes of metabolism that synthesize new molecules.

A special catalyst:

A catalyst is a chemical that speeds up a reaction without being used up itself. This means it can be reused. Different reactions need a different catalyst…

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Jason Voorhees

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Just a bit of info explaining  enzymes