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grade 9 quiz

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

pepsin is an enzyme that acts on

a)

proteins

b)

carbohydrates

c)

lipids

d)

starch

2.

an enzyme is destroyed at ...... degrees

a)

20

b)

0

c)

30

d)

60

3.

by the action of amylase the starch is transformed into

a)

maltose

b)

glucose

c)

amino acids

d)

all answers are incorrect

4.

digestion of lipids gives amino acids

a)

true

b)

false

5.

all carbohydrates are identified by Fehling's test

a)

true

b)

false

6.

chewing food is considered to be

a)

mechanical digestion

b)

chemical digestion

7.

in which part of the digestive system most of the chemical digestion occur

a)

stomach

b)

mouth

c)

large intestine

d)

small intestine

8.

Ph 1 is considered to be

a)

basic

b)

acidic

c)

neutral

9.

emulsification of lipids is considered to be part of

a)

mechanical digestion

b)

chemical digestion

10.

the name of the juice secreted in the mouth is

a)

gastric juice

b)

pancreatic juice

c)

saliva

d)

intestinal juice