Enzyme Activity

Question 1

Describe the induced-fit model of enzyme action and how an enzyme acts as a catalyst

Answer 1

1 substrate binds to the active site
2 active site changes shape slightly so it is complementary to substrate
3 reduces activation energy

Question 2

Explain how the active site of an enzyme causes a high rate of reaction

Answer 2

1 lowers activation energy
2 induced fit causes active site of enzyme to change shape
3 so enzyme-substrate complex causes bonds to break

Question 3

Formation of an enzyme substrate complex increases the rate of reaction.
Explain how.

Answer 3

1 reduces activation energy
2 due to bending bonds

Question 4

What is an enzyme?

Answer 4

1 protein
2 that lowers activation energy