Enzymes

Question 1

What is an enzyme?

Answer 1

A biological catalyst

Question 2

Enzyme facts

Answer 2

-To build and break molecules
-Can denature with extremes of pH and high temperatures

Question 3

What is activation energy?

Answer 3

The minimum energy needed for a chemical reaction to take place

Question 4

What is a substrate?

Answer 4

The target molecule that the enzymes active site binds to

Question 5

What is an active site?

Answer 5

The pocket on an enzyme, which allows the substance to bind

Question 6

How was the induced to fit model work?

Answer 6

-As the substrate approaches it’s proximity causes a conformational change to the active site and tertiary structure of the entire enzyme
-This allows the active site to become functional allowing enzyme-substrate complex to form

Question 7

What are factors that can affect the rate of reaction?

Answer 7

-concentration of substrate
-temperature
-increase/decrease in PH

Question 8

Why does pH effect it?

Answer 8

A change in pH alters the charges on the amino acid that make up the active site preventing an enzyme-substrate complex from forming