Types of Enzymes

Question 1

Oxidoreductase

Answer 1

Catalyzes the transfer of electrons or hydrogen ions.

A + B: -> A: + B

Ex. Redox reactions.

Question 2

Transferases

Answer 2

Catalyze reactions in which groups from a molecule are transferred to another molecule.

A + BX -> AX + B

Question 3

Glucose + ATP -(Hexokinase)> Glucose-6-Phosphate

Answer 3

Transferase

Question 4

Met-Ala + Leu-tRNA - (Peptidyl Transferase)> Met-Ala-Leu + tRNA

Answer 4

Transferase

Question 5

Isomerase

Answer 5

Catalyze reactions in which it moves a chemical group from 1 part of a molecule to another part.

Citrate -(Aconitase)-> Isocitrate

Question 6

Glucose-6-Phosphate -(Glucose Isomerase)> Fructose-6-Phosphate

Answer 6

Isomerase

Question 7

Glucose -(glucomutase)> Glucose-6-Phosphate

Answer 7

Isomerase

Question 8

What are the three different names for isomerase?

Answer 8

1. Isomerase
2. Mutase
3. Racemase

Question 9

Lyase (Decomposition)

Answer 9

Catalyzes decomposition reaction without H2O and generates a double bond or a ring.

Question 10

Fructose-1,6-Bisphosphate -(Aldolase)> G3P + DHAP

Answer 10

Lyase

Question 11

What are the three different names for a lyase?

Answer 11

1. Decarboxylase
2. Dehydratase
3. Aldolase

Question 12

Hydrolase (Decomposition)

Answer 12

Catalyzes decomposition reaction with H2O (as a nucleophile) to break a molecule into two pieces.

Question 13

What are the five common names for hydrolase?

Answer 13

1. Phosphatase
2. Protease - Breaks up a peptide bond
3. Peptidase
4. Nuclease
5. Hydrolase

Question 14

Ligase

Answer 14

Catalyzes a reaction that takes two molecules and puts them together.

A + B -> C

Question 15

What are the three common names for ligase?

Answer 15

1. Synthetase
2. Carboxylase
3. Ligase

Question 16

What are the four common names for oxidoreductase?

Answer 16

1. Dehydrogenase
2. Oxidase
3. Peroxidase
4. Reductase