Multiple Choice
Identify the letter of the choice that
best completes the statement or answers the question.
A
B
C
D
1.
All
fungi
a.
make their food.
b.
absorb their food.
c.
produce mushrooms.
d.
have chlorophyll.
A
B
C
D
2.
Fungi
do NOT
a.
undergo
photosynthesis.
b.
grow on their food source.
c.
digest food outside their
bodies.
d.
absorb food
through their cell walls.
A
B
C
D
3.
Fungi
resemble plants in that they both always
a.
have stems.
b.
grow from the ground.
c.
are multicellular.
d.
have cell walls.
A
B
C
D
4.
A
mushroom is a fungal
a.
fruiting body.
b.
lichen.
c.
mycorrhiza.
d.
yeast.
A
B
C
D
5.
The
tangled mass that makes up the body of a fungus is the
a.
hypha.
b.
rhizoid.
c.
mycelium.
d.
stolon.
Figure 21-1
A
B
C
D
6.
Fungal
hyphae, shown in Figure 21-1, differ in that some lack
a.
cell walls.
b.
cross walls.
c.
nuclei.
d.
cytoplasm.
A
B
C
D
7.
Most
fungi reproduce
a.
asexually
only.
b.
sexually
only.
c.
both sexually and
asexually.
d.
by
budding.
A
B
C
D
8.
Dark
fuzz that grows on bread is an example of
a.
toadstool.
b.
spore.
c.
yeast.
d.
mold.
A
B
C
D
9.
Bread
rises because fermentation by yeast produces
a.
spores.
b.
rhizoids.
c.
water.
d.
carbon dioxide.
A
B
C
D
10.
Yeasts
obtain energy by alcoholic fermentation in the absence of
a.
moisture.
b.
carbon dioxide.
c.
oxygen.
d.
sugar.
A
B
C
D
11.
Mushrooms are classified as
a.
common molds.
b.
sac fungi.
c.
club fungi.
d.
imperfect fungi.
A
B
C
D
12.
In
mushrooms, the basidia are found in the
a.
base.
b.
stalk.
c.
cap.
d.
root.
A
B
C
D
13.
Over
time, nutrients at the center of a large underground mycelium become depleted, causing new mushrooms
to sprout only
a.
in a cluster at
the center.
b.
in a ring at the
outer edges.
c.
when the
nutrients are replaced.
d.
after budding takes place.
A
B
C
D
14.
Which
statement about Penicillium is correct?
a.
It produces mushrooms.
b.
It causes bread to rise.
c.
It is the source of an
antibiotic.
d.
It causes
athlete's foot.
A
B
C
D
15.
An
important role of fungi in an ecosystem is
a.
photosynthesis.
b.
breaking down dead organisms.
c.
making alcohol.
d.
killing bacteria.
A
B
C
D
16.
Fungi
that absorb food from decaying organic matter are
a.
parasites.
b.
saprophytes.
c.
mutualists.
d.
autotrophs.
A
B
C
D
17.
Fungi
feed on
a.
only living
organisms.
b.
only dead
organisms.
c.
both living and
dead organisms.
d.
only other fungi.
A
B
C
D
18.
The
breakdown of dead organisms is sped on by the fungal production of
a.
alcohols.
b.
acids.
c.
digestive enzymes.
d.
recycled nutrients.
A
B
C
D
19.
The
human disease ringworm is caused by
a.
worms.
b.
bacteria.
c.
a fungus.
d.
yeasts.
A
B
C
D
20.
Crop
damage by fungal diseases is
a.
greatest in tropical areas.
b.
least in tropical areas.
c.
greatest in temperate areas.
d.
not affected by climate.
A
B
C
D
21.
The
fungus that forms a mycelium within the outer layers of human skin causes
a.
ringworm and athlete's foot.
b.
thrush and reproductive-tract
infections.
c.
reproductive-tract infections and ringworm.
d.
athlete's foot and thrush.
Figure 21-2
A
B
C
D
22.
Figure
21-2 illustrates an association of a(an)
a.
cyanobacterium and a plant.
b.
alga or cyanobacterium and a
fungus.
c.
plant and a
fungus.
d.
alga and a
plant.
A
B
C
D
23.
Which
of the following is NOT a single organism?
a.
rust
b.
smut
c.
yeast
d.
lichen
A
B
C
D
24.
Which
statement about lichens is correct?
a.
They are not tolerant of harsh
conditions.
b.
They cannot make
their own food.
c.
They grow only in soil.
d.
They are composed of an alga or a cyanobacterium and a
fungus living together.
A
B
C
D
25.
The
association of plants and fungi in mycorrhizae illustrates a type of relationship
called
a.
parasitism.
b.
mutualism.
c.
competition.
d.
parallelism.
