properties of enzymes

• Cells carry out thousands of chemical reactions.

  The sum of all these reactions is called cellular metabolism.
• Catabolic reactions involve the breakdown

  of substances and release of energy
• anabolic reactions involve taking in

  energy to build up complex molecules from simple molecules.
• The difference between catabolic and anabolic Catabolic reactions involve the breakdown of substances and release of energy while anabolic reactions take in energy to build up complex molecules from simple molecules.
• enzymes are biological catalysts made of protein. They speed up chemical reactions.
• Properties of enzymes:

  1. They are specific and catalyse 1 reaction only
  2. Enzymes are used in very small amounts and never used up
  3. They make enzyme/substrate complexes
  4. Enzymes are affected by pH and temperature
  5. CO-FACTOR is needed
  6. catalysed reactions can be stopped or slow down using a inhibitor