Chapter 20:
Nutrition and Digestion
Practice Test
1.
What is digestion that takes place inside a cell?
a.
peristalsis
b.
absorption
c.
intracellular digestion
d.
extracellular digestion
Hint
2.
Which of these actions is part of chemical digestion?
a.
grinding breaks food particles up into smaller pieces
b.
food is stored until it can be digested
c.
enzymes break food particles into smaller molecules
d.
chewing breaks food particles up into smaller pieces
Hint
3.
In what organ of an earthworm's digestive system do muscular contractions grind food into smaller particles?
a.
crop
b.
pharynx
c.
gizzard
d.
intestine
Hint
4.
What organ(s) in your mouth produce(s) enzymes that begin chemical digestion?
a.
pancreas
b.
liver
c.
salivary glands
d.
gallbladder
Hint
5.
What is the acidic liquid mixture that forms when digestion in the stomach is completed?
a.
chyme
b.
saliva
c.
starch
d.
bile
Hint
6.
Suppose your doctor tells you that you have anemia. What vitamin should you take to treat anemia?
a.
vitamin A
b.
vitamin C
c.
vitamin K
d.
vitamin B-12
Hint
7.
Which of these animals is a filter feeder?
a.
earthworm
b.
Hydra
c.
green turtle
d.
humpback whale
Hint
8.
What is the process of converting complex organic molecules into simpler ones that can pass through a cell membrane?
a.
digestion
b.
absorption
c.
nutrition
d.
peristalsis
Hint
9.
What type of animals obtain their food by passing water through a part of their bodies that strains food out of the water?
a.
autotrophs
b.
unicellular animals
c.
soil organisms
d.
filter feeders
Hint
10.
Fingerlike projections called _____ help to increase the surface area of the small intestine.
a.
blood vessels
b.
gills
c.
villi
d.
lymph vessels
Hint
