NOMENCLATURE AND CLASSIFICATION OF ENZYMES

Question 1

is the reactant
in an enzyme-catalyzed reaction. The substrate is the substance upon which the enzyme
“acts.

Answer 1

Substrate

Question 2

The suffi x -ase identifi es a substance as an enzyme

Answer 2

urease, sucrase, and lipase

Question 3

The suffi x -in is still found in the names

Answer 3

trypsin, chymotrypsin, and pepsin.

Question 4

The type of reaction catalyzed by an enzyme is often noted with a prefix

Answer 4

oxidase

Question 5

enzyme catalyzes a hydrolysis reaction.

Answer 5

Hydrolase

Question 6

The identity of the substrate is often noted in addition to the type of reaction. Enzyme names of this type include

Answer 6

glucose oxidase, pyruvate carboxylase, and succinate dehydrogenase

Question 7

is an enzyme that catalyzes an oxidation–reduction reaction e requires a
coenzyme that is oxidized or reduced as the substrate is reduced or oxidized

Answer 7

oxidoreductase

Question 8

is an enzyme that catalyzes the transfer of a functional group from one molecule to another

Answer 8

transferase

Question 9

Two major subtypes of transferases are?

Answer 9

transaminases and kinases

Question 10

is an enzyme that catalyzes a hydrolysis reaction in which the addition of a water molecule to a bond causes the bond to break

Answer 10

hydrolase

Question 11

is an enzyme that catalyzes the addition of a group to a double bond or the
removal of a group to form a double bond in a manner that does not involve hydrolysis or oxidation.

Answer 11

lyase

Question 12

is an enzyme that catalyzes the isomerization (rearrangement of atoms)
of a substrate in a reaction, converting it into a molecule isomeric with itself

Answer 12

Isomerase

Question 13

is an enzyme that catalyzes the bonding together of two molecules into one
with the participation of ATP

Answer 13

ligase

Question 14

List the Selected Subclasses of oxidoreductases

Answer 14

Oxidases, reductases, dehydrogenases

Question 15

List the selected subclasses of transferases

Answer 15

transaminases , kinases

Question 16

List the selected subclasses of Hydrolases

Answer 16

Lipases, Proteases, Nucleases, Carbohydrates, phosphates

Question 17

List the selected subclasses of lysases

Answer 17

Dehydratases, Decarboxylases

Question 18

Lists the subclasses of isomerases

Answer 18

Racemases, Mutases

Question 19

lists the subclasses of ligases

Answer 19

Carboxylases