Enzymes.

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Presentation transcript:

Enzymes

Enzymes Enzymes are proteins used by the cell to control the rate of chemical reactions in the body They lower the activation energy (amount of energy needed to start the chemical reaction)of the reaction

Enzymes The substrate binds to the enzyme at the active site (the word “substrate” refers to any molecule) The enzyme is available to be used again

The rate of enzyme activity depends on: pH Temperature Concentration

TEMPERATURE

pH

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