Deck 20: The Protists

Question 1

Four of the five answers listed below are amoebozoans. Select the exception.

A)amoebas
B)cellular slime molds
C)plasmodial slime molds
D)Dictyostelium
E)diatoms

Answer 1

E

Question 2

All protists have ____.

A)chloroplasts only
B)nuclei only
C)mitochondria only
D)both nuclei and mitochondria
E)chloroplasts, nuclei, and mitochondria

Answer 2

D

Question 3

Which stramenopiles are photosynthetic?

A)diatoms only
B)brown algae only
C)water molds only
D)diatoms and brown algae only
E)diatoms, brown algae, and water molds

Answer 3

D

Question 4

Foraminiferan and radiolarian lineages are related, but different in that one ____ and the other ____.

A)has a mineral-based shell; does not have a mineral-based shell
B)has a chalk shell; has a silica shell
C)has a shell; does not have a shell
D)is heterotrophic; is completely autotrophic
E)has a single, large mitochondria; has many large mitochondria

Question 5

Four of the five answers are characteristics of diatoms. Select the exception.

A)two-part silica shells
B)photosynthetic
C)some produce a toxin that accumulates in fish, crabs, and shellfish
D)flagella
E)live in lakes, seas, and damp soils

Question 6

Of the amoebozoans, which species spend their entire lives as single cells?

A)all slime molds
B)cellular slime molds only
C)plasmodial slime molds only
D)amoebas
E)spore-bearing fruiting bodies

Question 7

Which protist has a belt-like flagellum that runs through a groove in the middle of its cell?

A)dinoflagellates
B)ciliates
C)apicomplexans
D)euglenoids
E)trypanosomes

Question 8

Gut-dwelling ____ help cattle, sheep and related grazing animals break down ____ in plant material.

A)ciliates; chlorophyll
B)apicomplexans; cellulose
C)dinoflagellates; cellulose
D)dinoflagellates; chlorophyll
E)ciliates; cellulose

Question 9

The largest protists would be included in which group?

A)brown algae
B)golden algae
C)red algae
D)green algae
E)blue-green algae

Question 10

Cells of a ____ organism live together, but remain self-sufficient.

A)single-cell
B)multicellular
C)colonial
D)community
E)protist

Question 11

Agar and carrageenan are extracted from ____ algae for use as thickeners or stabilizers in foods, cosmetics, and personal care products.

A)only brown
B)only red
C)only green
D)brown and green
E)red and green

Question 12

Which organism causes malaria?

A)apicomplexans
B)ciliate
C)dinoflagellate
D)foraminifera
E)radiolaria

Question 13

Which specialized structure is not correctly paired with its actual function?

A)gullet-ingestion
B)cilia-food gathering
C)contractile vacuole-digestion
D)cilia-locomotion
E)micronucleus-sexual reproduction

Question 14

Which amoebozoan spends most of its life cycle as a multinucleated mass that streams along surfaces, feeding on microbes and organic matter?

A)all slime molds
B)cellular slime molds only
C)plasmodial slime molds only
D)amoebas
E)spore-bearing fruiting bodies

Question 15

The failure of the potato crop and the subsequent Irish famine in the mid-1800s was due mainly to which group?

A)slime molds
B)apicomplexans
C)zooplankton
D)brown algae
E)water molds

Question 16

Slime molds are classified as ____.

A)protists
B)fungi
C)bacteria
D)archaea
E)plants

Question 17

Most ____ are aquatic predators.

A)diatoms
B)water molds
C)foraminifera
D)radiolaria
E)ciliates

Question 18

What is in the outer cytoplasmic layer of radiolaria?

A)nucleus
B)contractile vacuoles
C)algae
D)mitochondria
E)gas filled vacuoles

Question 19

Four of the five answers listed below are protist structures. Select the exception.

A)cell membrane
B)pili
C)mitochondrion
D)eyespot
E)pellicle

Question 20

Which species causes the waterborne disease giardiasis?

A)euglenoids
B)trypanosomes
C)diplomonads
D)parabasalids
E)any anaerobic protozoans

Question 21

What is a colonial green algae that forms the whirling spheres found in fresh water?

A)nori
B)Porphyra
C)kelp
D)Volvox
E)Ulva

Question 22

The simplest of the eukaryotes are the ____.

A)protists
B)plants
C)fungi
D)animals
E)Archaea

Question 23

Red algae ____.

A)can live at greater depths than green algae
B)are thought to have developed from green algae
C)contain xanthophylls as their main accessory pigments
D)contain no chlorophyll a
E)are mostly freshwater algae

Question 24

Sources for alginic acid, a thickening, emulsifying agent found in ice cream, toothpaste, pudding and cosmetics, are the ____.

A)seed plants
B)ferns
C)brown algae
D)red algae
E)green algae

Question 25

The pellicle of protozoa is most directly involved in ____.

A)feeding
B)information storage
C)locomotion
D)maintaining structure
E)water removal

Question 26

Amoebozoans are heterotrophic protists with cells that lack ____; therefore, they can constantly change shape.

A)cell junctions
B)a cytoskeleton
C)a cell membrane
D)a cell wall or pellicle
E)pseudopods

Question 27

If a chloroplast in a protist has four membranes, it arose from ____.

A)primary endosymbiosis
B)secondary endosymbiosis
C)tertiary endosymbiosis
D)protist cell fusion
E)protist organelle replication

Question 28

Four of the five answers listed below are members of the same kingdom. Select the exception.

A)Archaea
B)protozoa
C)charophyte
D)dinoflagellate
E)euglenoid

Question 29

Which protists have a flagellum surrounded by a "collar" of threadlike projections, in which movement of the flagellum sets up a current that draws food-laden water through the collar?

A)amoebozoans
B)choanoflagellates
C)rhizarians
D)green algae
E)stramenopiles

Question 30

What is a protist?

A)a prokaryote that is not a bacterium
B)a prokaryote that is neither a bacterium nor archaea
C)a eukaryote that is not an animal, but may be a plant
D)a eukaryote that is not an animal or plant, but may be fungi
E)a eukaryote that is not an animal, plant, or fungi

Question 31

A contractile vacuole is important to euglenoids for ____.

A)photosynthesis
B)food storage
C)excess water removal
D)movement
E)structure

Question 32

The majority of protists are ____.

A)free-living and terrestrial
B)free-living and aquatic
C)parasitic and terrestrial
D)parasitic and aquatic
E)free-living and aerial

Question 33

Which organism has a structure made of microtubules that allows it to penetrate its host?

A)apicomplexans
B)ciliate
C)dinoflagellate
D)foraminifera
E)radiolaria

Question 34

The chlorophyte seaweed ____ is also known as sea lettuce.

A)nori
B)Porphyra
C)kelp
D)Volvox
E)Ulva

Question 35

Nori, used to wrap sushi, is ____.

A)red algae
B)green algae
C)brown algae
D)golden algae
E)diatoms

Question 36

Malaria kills ____ people a year.

A)less than 250,000
B)300,000 to 400,000
C)more than 500,000
D)1 to 2 million
E)relatively few

Question 37

The parasite Plasmodium reproduces in which cells of the human body?

A)brain
B)digestive tract
C)kidney
D)red blood cells and liver
E)white blood cells

Question 38

Which excavates have modified mitochondria and make ATP without oxygen?

A)trypanosomes
B)euglenoids
C)rhizarians
D)diplomonads and parabasalids
E)diatoms and brown algae

Question 39

Ancient ____ are sometimes turned into petroleum deposits by geologic processes.

A)diatoms
B)water molds
C)foraminifera
D)radiolaria
E)ciliates

Question 40

Trypanosomes that infect humans are transmitted by ____.

A)biting insects
B)contaminated water
C)contaminated food
D)aerosols
E)parasitic worms

Question 41

The ____ algae are the closest living relatives to land plants.

A)Chlamydomonas
B)Volvox
C)charophyte
D)sea lettuce
E)Ulva

Question 42

Match the group with the most appropriate description. Answers may be used more than once.
a.excavates
b.stramenopiles
c.alveolates
d.rhizarians
e.archaeplastidae
f.amoebozoans
g.choanoflagellates
Plasmodium

Question 43

Four of the five groups listed below have single-celled members. Select the exception.

A)brown algae
B)dinoflagellates
C)green algae
D)diatoms
E)red algae

Question 44

Match the group with the most appropriate description. Answers may be used more than once.
a.excavates
b.stramenopiles
c.alveolates
d.rhizarians
e.archaeplastidae
f.amoebozoans
g.choanoflagellates
dinoflagellates

Question 45

Kelps are examples of ____.

A)red algae
B)green algae
C)brown algae
D)golden algae
E)euglenoids

Question 46

Match the group with the most appropriate description. Answers may be used more than once.
a.excavates
b.stramenopiles
c.alveolates
d.rhizarians
e.archaeplastidae
f.amoebozoans
g.choanoflagellates
Euglena

Question 47

Match the group with the most appropriate description. Answers may be used more than once.
a.excavates
b.stramenopiles
c.alveolates
d.rhizarians
e.archaeplastidae
f.amoebozoans
g.choanoflagellates
closest relatives to animals

Question 48

Match the group with the most appropriate description. Answers may be used more than once.
a.excavates
b.stramenopiles
c.alveolates
d.rhizarians
e.archaeplastidae
f.amoebozoans
g.choanoflagellates
foraminiferans

Question 49

Freshwater algae belong to which group?

A)red algae
B)green algae
C)dinoflagellates
D)brown algae
E)golden algae

Question 50

Which protists have two flagella that make them spin and move forward?

A)dinoflagellates
B)ciliates
C)apicomplexans
D)rhizarians
E)euglenoids

Question 51

Match the group with the most appropriate description. Answers may be used more than once.
a.excavates
b.stramenopiles
c.alveolates
d.rhizarians
e.archaeplastidae
f.amoebozoans
g.choanoflagellates
diatoms

Question 52

Match the group with the most appropriate description. Answers may be used more than once.
a.excavates
b.stramenopiles
c.alveolates
d.rhizarians
e.archaeplastidae
f.amoebozoans
g.choanoflagellates
Paramecium

Question 53

Match the group with the most appropriate description. Answers may be used more than once.

-cellular slime mold

A)excavates
B)stramenopiles
C)alveolates
D)rhizarians
E)archaeplastidae
F)amoebozoans
G)choanoflagellates

Question 54

Match the group with the most appropriate description. Answers may be used more than once.
a.excavates
b.stramenopiles
c.alveolates
d.rhizarians
e.archaeplastidae
f.amoebozoans
g.choanoflagellates
Porphyra

Question 55

Phytoplankton forming the base of aquatic food chains contains ____.

A)diatoms
B)water molds
C)foraminifera
D)radiolaria
E)ciliates

Question 56

Paramecium is a representative of the ____.

A)apicomplexans
B)amoebas
C)flagellates
D)euglenoids
E)ciliates