Factors that Affect Enzyme Action

Question 1

Explain how increasing the temperature can cause an enzyme to denature. (model answer)

Answer 1

High temperatures start to break the bonds holding the enzyme together

This causes the enzyme and it’s active site to change shape

This means the enzymes active site will no longer be complementary to the substrate

Question 2

what does optimum temperature mean?

Answer 2

The temperature which gives the highest enzyme activity

Question 3

what is pH?

Answer 3

A measure of acidity

Question 4

What affect does extremely high pH have on enzymes?

Answer 4

it denatures them

Question 5

can enzymes be reused?

Answer 5

yes

Question 6

T/F : the shape of an enzyme is crucial for its activity

Answer 6

true

Question 7

T/F: enzymes break down food during digestion

Question 8

T/F: all enzymes have the same optimum temperature

Answer 8

F the optimum temperature varies with each enzyme

Question 9

optimal pH

Answer 9

the pH at which the enzyme works best