Metabolic Reactions

I can describe how chemical reactions break down and build up molecules in living things.

• 1

  Enzymes are mostly proteins that speed up reactions by binding to substrates at the enzyme's active site.

• 2

  Enzymes are considered catalysts because they are not used up in a reaction and can be used over and over.

• 3

  If the pH or temperature is not ideal, an enzyme can become denatured, which means it loses its shape and can no longer function.