effects on enzyme rate

• What are the main factors that effect enzyme rate?

  • Temperature
  • PH
• How does temperature effect enzyme rate?

  • Temperatures below the optimum temperature have less kinetic energy and so move slower and collide less frequently.
  • Temperatures above the optimum denature the enzyme. Changing the shape of the active site and so the substrate can no longer fit.
• What effect does the PH have on the enzyme rate?

  • The PH's below the optimum cause the enzyme to denature.
  • The PH's above the optimum cause the enzyme to denature.
• What is the typical optimum temperature for enzymes?

  Around 37 degrees - the body temperature.
• What is the optimum PH?

  • Most around 7.
  • Stomach enzymes tend to be acidic.