Unit 1 Enzymes

Question 1

What creates a variety of proteins with different shapes and Functions

Answer 1

The variety of protein shapes and functions arises from the sequence of amino acids.

Question 2

Give 5 functions of proteins

Answer 2

Structural

Hormones

Antibodies

Receptors

Enzymes

Question 3

What do enzymes do?

Answer 3

They speed up the rate of a chemical reaction

Question 4

What can you say happens to enzyme at the end of a reaction?

Answer 4

Nothing. The enzyme is unchanged by the reaction

Question 5

Where would you find enzymes?

Answer 5

In all living cells

Question 6

What is important about the active site?

Answer 6

The shape of the active site of an enzyme molecule is complementary to its specific substrate(s).

Question 7

What does enzyme action results in ?

Answer 7

A Product

Question 8

Name two types of enzyme reaction?

Answer 8

Synthesis and degradation

Question 9

What type of reaction is shown below?

Answer 9

Synthesis reaction

Question 10

Under What conditions do enzymes work best?

Answer 10

Optimum temperature and pH

Question 11

What happens when an enzyme is Hheated above its optimum temperature?

Answer 11

Th active ibecomes denatured.i.e the shape of the actives changes, the ative site is no longer complimentary in shape to the enzyme and so the reaction does not take place.