Effect of temperature and PH on enymes

Question 1

What happens to the activity of the enzymes as the temperature increases?

Answer 1

• ## As we increase the temperature the activity of the enzymes increases (the reaction gets faster).

Question 2

Why does the activity of enzymes increases as the temperature increases?

Answer 2

• Enzyme + Substrate are moving faster.
• ## There are more collisions per second between the substrate and active site.

Question 3

What is the optimum temperature?

Answer 3

• Certain temperature when the Enzyme is working at the fastest possible rate.
• Maximum frequency of successful collisions between the substrate and the active site.

Question 4

What happens when we increase the temperature past the optimum temperature?

Answer 4

• The activity of the enzymes rapidly decreases to .0.

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Question 5

What happens to the enzymes at high temperatures and what is this called?

Answer 5

• Enzyme molecule vibrates and the shape of the active site changes.
• Substrate no longer fits perfectly into the active site.
• Denatured.
• ## Enzyme can no longer catalyse the reaction.

Question 6

When does the enzyme have a maximum PH?

Answer 6

• The enzyme has a optimum PH where the activity is maximum.

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Question 7

What happens if me make the PH more acidic or alkilaine?

Answer 7

• The activity drops to 0 the active site denatures if the conditions are too acidic or too alkaline.