Enzymes

Question 1

What are enzymes?

Answer 1

-protein catalysts (guide and control chemical reactions)

Question 2

What are the three basic characteristics of enzymes?

Answer 2

• increase rate of reaction
• act specifically with one reactant
• can be used over and over

Question 3

Why do enzymes hahe to be regulated?

Answer 3

Because they are sensitive to their environment conditions and because our body has limited time, resources, and energy so it must respond

Question 4

What are the two categories of enzyme inhibitors?

Answer 4

Competitive and non competitive

Question 5

What is a competitive inhibitor?

Answer 5

Binds to active sight of an enzyme and blocks the substrate

Question 6

What is a non competitive inhibitor?

Answer 6

Binds elsewhere on an enzyme and change the shape of the active sight

Question 7

What is allosteric regulation?

Answer 7

When enzymes are capable of alternating between an active and inactive shape

Question 8

What are allosteric sites?

Answer 8

Are receptor sites on an enzyme that may inhibit or stimulate an enzyme’s activity

Question 9

What are the two types of allosteric regulation?

Answer 9

Allosteric activator and inhibitor

Question 10

What is an allosteric activator?

Answer 10

Binds to site and stabilizes protein shape and keeps all of the active sites available to substrates

Question 11

What is a allosteric inhibitor

Answer 11

Stabilizes inactive form of enzymes, binds to site