Multiple Choice
Identify the letter of the choice that
best completes the statement or answers the question.
A
B
C
D
1.
A
protist is any organism that is not a plant, an animal, a fungus, or
a.
a eukaryote.
b.
a prokaryote.
c.
heterotrophic.
d.
photosynthetic.
A
B
C
D
2.
Multicellular protists are grouped with unicellular protists because
they
a.
do not resemble
plants.
b.
do not resemble
animals.
c.
do not resemble
fungi.
d.
are very similar
to unicellular protists.
A
B
C
D
3.
Eukaryotic cells may have evolved from
a.
a symbiosis of several cells.
b.
mitochondria that grew very
large.
c.
chloroplasts that
grew very large.
d.
plants, animals, and fungi.
A
B
C
D
4.
In an
amoeba, a small cavity within the cytoplasm that stores food is a
a.
gullet.
b.
pseudopod.
c.
food vacuole.
d.
contractile vacuole.
A
B
C
D
5.
Members of the phylum that contains amoebas, foraminifers, and heliozoans
are
a.
sarcodines.
b.
ciliates.
c.
sporozoans.
d.
pseudopods.
A
B
C
D
6.
Zooflagellates may live in lakes and streams, where they
a.
penetrate and live with cells of a
host.
b.
absorb food
through their cell membrane.
c.
feed by sweeping food particles into their
gullet.
d.
feed by
surrounding their meal and taking it inside themselves.
A
B
C
D
7.
Some
animallike protists are important to the balance in ecosystems because they
a.
live in insects without harming
them.
b.
contaminate water
supplies.
c.
break down dead
organic matter.
d.
are difficult to kill when they produce
cysts.
A
B
C
D
8.
Which
statement about malaria is true?
a.
Not all strains can be treated, and there is no completely
effective vaccine.
b.
All strains can be treated with modern drugs, however
there is no completely effective vaccine.
c.
All strains can be treated with modern drugs, and there is
an effective vaccine.
d.
Malaria has been eradicated by control of the
Anopheles mosquito.
A
B
C
D
9.
Termites could not damage wooden structures without the cooperation of the animallike
protist
a.
Giardia .
b.
Entamoeba .
c.
Trichonympha .
d.
Trympanosoma .
A
B
C
D
10.
A
person who comes down with malaria can infer that he or she contracted it from
a.
contaminated water supplies.
b.
infection by the animallike protist
Giardia .
c.
the bite of the Anopheles
mosquito.
d.
the bite of the
tsetse fly.
A
B
C
D
11.
Algae
have a range of colors because they
a.
make different kinds of light
energy.
b.
have different
accessory pigments.
c.
have only chlorophyll a.
d.
change color in seawater.
A
B
C
D
12.
The
evolution of different chlorophylls and accessory pigments in algae had what effect?
a.
a decrease in the range of depths at which algae can
live
b.
an increase in
the range of depths at which algae can live
c.
no effect on the range of depths at which algae can
live
d.
a reduction in
the photosynthetic capacity of algae
A
B
C
D
13.
Which
of the statements is true about dinoflagellates?
a.
They contain bright yellow
pigments.
b.
They can be both
photosynthetic and heterotrophic.
c.
Many species are luminescent.
d.
They possess pillbox-shaped cell walls of
silica.
A
B
C
D
14.
A
bloom is
a.
the clouding of
water by sewage.
b.
an enormous mass of algae.
c.
a symbiotic relationship between algae and
coral.
d.
none of the
above
A
B
C
D
15.
The
population of small, photosynthetic organisms found near the surface of the ocean are referred to as
the
a.
chrysophytes.
b.
pyrophytes.
c.
phytoplankton.
d.
diatoms.
A
B
C
D
16.
Which
organism would most likely be present in a water sample collected during a red tide?
a.
Tridacna
b.
Euglenophyta
c.
Gonyaulax
d.
diatoms
A
B
C
D
17.
What
characteristic of green plants is shared by green algae?
a.
cell wall composition
b.
photosynthetic pigments
c.
multicellularity
d.
all of the above
A
B
C
D
18.
The
phylum of multicellular algae most likely to be observed at great depths is
a.
Chlorophyta.
b.
Rhodophyta.
c.
Phaeophyta.
d.
none of the above
A
B
C
D
19.
An
argument that does NOT support the classification of multicellular green algae as plants is that
multicellular green algae
a.
have specialized tissues.
b.
live primarily in water.
c.
display alternation of
generations.
d.
contain
chlorophyll a, which makes them green.
A
B
C
D
20.
What
very large type of algae lives off the coasts of North America and provides a home for many
animals?
a.
rockweed
b.
sea lettuce
c.
brown kelp
d.
Irish moss
A
B
C
D
21.
Some
products derived from algae include
a.
drugs for stomach ulcers and high blood
pressure.
b.
thickeners for
food.
c.
chemicals in
plastics, waxes, paints, and lubricants.
d.
all of the above
A
B
C
D
22.
Which
of the following is algae’s most important contribution to humans?
a.
as a source for industrial
chemicals
b.
as a source for
medicinal drugs
c.
as a photosynthesizer
d.
as a direct food source for
humans
A
B
C
D
23.
Funguslike protists get nutrients by
a.
photosynthesis.
b.
living as an animal parasite.
c.
absorbing them from dead or decaying
matter.
d.
none of the
above
A
B
C
D
24.
Which
type of protist is likely to be easily found in a damp, nutrient-rich environment?
a.
a single-celled alga
b.
a animallike protist
c.
a funguslike protist
d.
all of the above
A
B
C
D
25.
The
funguslike protists that thrive on dead or decaying organic matter in water are
a.
water molds.
b.
acellular slime molds.
c.
cellular slime molds.
d.
true fungi.
