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Enzyme Quiz

Total questions: 20

Worksheet time: 13mins

Name
Class
Date
1.

It is a biological catalyst that speed up the rate of all biochemical reactions.

a)

Enzymes

b)

oxidoreductases

c)

lyases

d)

isomerases

2.

Enzyme leaves a cell and functions outside the cell

a)

globular proteins

b)

extracellular enzyme

c)

intracellular enzyme

d)

International Union of Biochemistry (IUB)

3.

Enzyme leaves a cell and functions Inside the cell

a)

globular proteins

b)

extracellular enzyme

c)

Intracellular enzyme

d)

International Union of Biochemistry (IUB)

4.

Most enzymes are ___ ___. Some are RNAs.

a)

globular proteins

b)

substrate

c)

products

d)

biological catalysts

5.

what do you call a substance the enzyme works on?

a)

products

b)

intracellular enzyme

c)

substrate

d)

extracellular

6.

The enzyme-substrate complex breaks intro __ and enzyme

a)

lyases

b)

ligases

c)

substrate

d)

products

7.

What does IUB means?

a)

International Union of Biochemistry

b)

International United of Biology

c)

Internationals University of Biography

d)

International Union of Biology

8.

When was the IUB introduced?

a)

1968

b)

1960

c)

1972

d)

1964

9.

Enzyme __ the activation of energy needed for a reaction to take place.

a)

Lowers

b)

Highers

10.

Six classes of enzymes (in order)

(a)  

11.

This type of enzyme is involved in redox reactions.

a)

Transferases

b)

Oxidoreductases

c)

Hydrolases

d)

Lyases

12.

This type of enzyme transfer of an atom or group of atoms from a donor molecule to an acceptor molecule

a)

Transferases

b)

Oxidoreductases

c)

Hydrolases

d)

Lyases

13.

This is the most common class of enzymes. It catakyze hydrolytic reaction

a)

Transferases

b)

Oxidoreductases

c)

Hydrolases

d)

Lyases

14.

This type of enzyme involved in elimination or addition reactions

a)

Transferases

b)

Oxidoreductases

c)

Hydrolases

d)

Lyases

15.

This type of enzyme catalyze molecular isomerization.

a)

Hydrolases

b)

Lyases

c)

Ligases

d)

Isomerases

16.

This type of enzyme are also known as synthetases. (involved in the formation of covalent bond)

a)

Hydrolases

b)

Oxidoreductases

c)

Ligases

d)

Isomerases

17.

Which is an example of enzyme? (2 answers)

a)

peroxidase

b)

hydro

c)

sucrase

d)

dehydrogenases

18.

Oxidoreductases includes?

(a)  

19.

This type of enzyme lyases includes?

(a)  

20.

The catalyzed enzyme reaction is ___

a)

irreversible

b)

reversble