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Chapter 8 Enzyme and Metabolism Quiz

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

What type of reaction releases energy?

a)

exergonic

b)

endergonic

c)

anabolic

d)

metabolic

2.

Which type of reaction is photosynthesis?

a)

catabolic

b)

anabolic

3.

What type of reaction is cellular respiration?

a)

catabolic

b)

anabolic

4.

All the chemical reactions in the body is known as

a)

catabolism

b)

anabolism

c)

metabolism

d)

enzymatic

5.

Which type of macromolecule are most enzymes?

a)

carbohydrates

b)

lipids

c)

nucleic acids

d)

proteins

6.

Which type of reaction causes ATP to form ADP + P?

a)

dehydration synthesis

b)

hydrolysis

c)

anabolic

d)

endergonic

7.

Which part of the enzyme is the place where the substrate attaches?

a)

enzyme

b)

products

c)

activation site

d)

active site

8.

Which of the following is false?

a)

Enzymes are specific.

b)

Enzymes work at a particular pH.

c)

All enzymes are catalysts.

d)

Enzymes raise the activation energy.

9.

Which reaction is considered an "uphill" or endergonic reaction?

a)

cellular respiration

b)

ATP --> ADP + P

c)

photosynthesis

d)

combustion

10.

Which type of inhibitor mimics the substrate and gets into the active site to slow down the reaction?

a)

noncompetitive inhibitor

b)

competitive inhibitor

11.

What does pepsin break down?

a)

protein

b)

carbohydrates

c)

sucrose

d)

lipids

12.

What does lipase break down?

a)

proteins

b)

carbohydrates

c)

lactose

d)

lipids

13.

What is a biological catalyst that is unchanged in the reaction?

a)

enzyme

b)

inhibitor

c)

competitor

d)

substrate

14.

Changes in pH and temperature can cause an enzyme to

a)

puncture

b)

lyse

c)

denature

d)

fold into a quaternary structure

15.

What is the optimal pH for this enzyme?

a)

6

b)

9

c)

10

d)

7

16.

After an enzyme and substrate bond together and perform a reaction, what does the substrate become?

a)

an enzyme

b)

a product

c)

an active site

d)

another substrate

17.

Which letter represents the product?

a)

A

b)

B

c)

C

d)

D

18.

Endergonic reactions

a)

absorb energy

b)

release energy

19.

Which type of reaction is this?

a)

catabolic

b)

anabolic

20.

Which letter represents the activation energy With an enzyme?

a)

A

b)

B

c)

C

21.

What is it called when a phosphate group from ATP is transferred to another molecule?

a)

phosphorylated

b)

endergonic

c)

energy transfer

d)

catalysis

22.

Which type of reactions require enzymes to catalyze them?

a)

anabolic

b)

catabolic

c)

all reactions

23.

What type of energy is in a mole of glucose?

a)

kinetic energy

b)

potential energy

24.

Enzymes lower the energy of activation.

a)

True

b)

False

25.

Many enzymes end in -ase.

a)

True

b)

False