Enzymes

Question 1

Enzymes that catalyzed the hydrolysis reactions.

Answer 1

Hydrolases

Question 2

Hydrolases

Answer 2

Enzymes that catalyzed the hydrolysis reactions.

Question 3

Examples of Hydrolases

Answer 3

Proteases, Lipases, Phosphatase, Amylase

Question 4

What type of enzyme is an amylase, or a protease?

Answer 4

Hydrolases

Question 5

Enzymes that catalyzed the reactions in which larger molecules are broken down into smaller ones without the use of water.

Answer 5

Lyases

Question 6

Lyases

Answer 6

Enzymes that catalyzed the reactions in which larger molecules are broken down into smaller ones without the use of water.

Question 7

Examples of Lyases

Answer 7

Aldolase, Decarboxylase

Question 8

What type of enzyme are aldolase and decarboxylase?

Answer 8

Lyases

Question 9

Enzymes that carry out isomerization reactions.

Answer 9

Isomerases.

Question 10

Enzymes that carry out synthesis reactions.

Answer 10

Ligases, Synthatases

Question 11

Is Kinase a synthetase enzyme?

Answer 11

No

Question 12

Enzymes that carry out redox reactions.

Answer 12

Oxidoreductase

Question 13

Examples of oxidoreductase enzymes

Answer 13

Dehydrogenase (removes H+)
Oxidase (add H+)

Question 14

Enzymes that add a functional group to a molecule

Answer 14

Transferase

Question 15

Different types of transferase

Answer 15

Kinase/Transaminase

Question 16

Kinase is a _______ type of enzyme.

Answer 16

Transferase

Question 17

Cofactors

Answer 17

Small inorganic molecules that are required for the enzyme to function.

Question 18

Coenzymes

Answer 18

Organic carrier molecules that hold on to useful components in the reaction, and thus; required for the enzyme to function.

Question 19

Types of enzyme inhibition

Answer 19

1. Competitive inhibition
   -Inhibitor competes with the substrate and binds to active-site
   -Increasing substrate concentration increases rate of reaction.
2. Non-competitive inhbition
   -Inhibitors binds to the allosteric site.
   -Adding more substrate does not reduce inhibition.
3. Uncompetitive inhibition
   -Inhibitors bind to the enzyme-substrate complex.
   -Adding more substrate does not reduce inhibition.

Question 20

How can our bodies decrease enzyme activity?

Answer 20

1. Degradation: Proteases
2. Reducing gene expression.
3. Inhibition

Question 21

How can our bodies increase enzyme activity?

Answer 21

1. Coenzymes
2. Cofactors
3. Increasing gene expression of enzymes
4. Activators (bind allosterically to the enzyme, conformationally changing the enzyme and activating them to start catalyzing the reactions)

Question 22

True or false: Co-enzymes can be proteins.

Answer 22

False