Deck 26: Protists

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Question
Ancestors of ____ may have possessed mitochondria, which were lost or reduced during evolutionary history.

A) Paramecium
B) Laminaria
C) Amoeba
D) Euglena
E) Giardia
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Question
Which is an anaerobic excavate that is an endosymbiont of animals?

A) diatom
B) euglenoid
C) parabasilid
D) actinopod
E) dinoflagellate
Question
Which protist group possess a crystalline rod in their flagella?

A) ciliates
B) diatoms
C) euglenoids
D) water molds
E) zooxanthellae
Question
Among the protist groups below, which has organisms that typically move with two or more flagella?

A) actinopods
B) amoebozoa
C) diplomonads
D) foraminifera
E) apicomplexans
Question
Some protists consist of a single cell with multiple nuclei. This condition is known as:

A) alternation of generations.
B) multicellular.
C) coenocytic.
D) mycelium.
E) colonial.
Question
Which protist group contains the organism Trypanosoma, a colorless parasite that can cause African sleeping sickness?

A) unikonts
B) excavates
C) rhizarians
D) archaeplastids
E) chromalveolates
Question
In primary endosymbiosis, an ancient eukaryotic cell engulfed a(n) ____, which survived and evolved into a chloroplast.

A) algae
B) virus
C) ciliate
D) euglenoid
E) cyanobacterium
Question
Most protists are ____, with each cell forming a complete organism capable of performing all the functions characteristic of life.

A) parasitic
B) colonial
C) unicellular
D) autotrophic
E) multicellular
Question
Figure 26-1 <strong>Figure 26-1   Refer to the accompanying figure. What is the function of the structure labeled as 6?</strong> A) digestion B) food intake C) water discharge D) waste elimination E) asexual reproduction <div style=padding-top: 35px> Refer to the accompanying figure. What is the function of the structure labeled as 6?

A) digestion
B) food intake
C) water discharge
D) waste elimination
E) asexual reproduction
Question
Members of the alveolates are characterized by the presence of:

A) two or more flagella
B) chloroplast pigments
C) crystalline rod in the flagella
D) contractile vacuoles surrounded by a pellicle.
E) flattened vesicles under the plasma membrane.
Question
Which algal group contains individuals that are typically unicellular and form siliceous shells?

A) diatoms
B) red algae
C) brown algae
D) green algae
E) dinoflagellates
Question
Which protist group is characterized by having a micronucleus and a macronucleus?

A) ciliates
B) euglenoids
C) actinopods
D) diplomonads
E) amoebozoans
Question
The fossilized form of ____ is used in commercially important products, such as filters, polishes, and insect killer.

A) dinoflagellates
B) apicomplexans
C) zooflagellates.
D) euglenoids
E) diatoms
Question
Which eukaryotic organelles likely arose from symbiotic relationships between larger cells and bacteria?

A) nuclei
B) endoplasmic reticulums
C) vacuoles and chloroplasts
D) mitochondria and chloroplasts
E) mitochondria and Golgi complexes
Question
Most protists are:

A) aquatic.
B) parasitic.
C) terrestrial.
D) coenocytic.
E) thermophiles.
Question
Figure 26-1 <strong>Figure 26-1   Refer to the accompanying figure. What is the function of the structure labeled as 4?</strong> A) digestion B) food intake C) water discharge D) waste elimination E) asexual reproduction <div style=padding-top: 35px> Refer to the accompanying figure. What is the function of the structure labeled as 4?

A) digestion
B) food intake
C) water discharge
D) waste elimination
E) asexual reproduction
Question
Given the diversity in protist ultrastructure and molecular data, biologists regard the protists as a(n) ____ group, meaning that some are descendants of a common eukaryote ancestor.

A) monophyletic
B) paraphyletic
C) polyphyletic
D) homoplastic
E) homologous
Question
Which protist clade (supergroup) is characterized by their greatly modified mitochondria?

A) excavates
B) unikonts
C) rhizarians
D) archaeplastids
E) chromalvolates
Question
Brown algae lack true roots, but have similar structures called ____ that anchor them to the substrate.

A) stipes
B) fronds
C) thalli
D) blades
E) holdfasts
Question
Which statement about euglenoids is FALSE?

A) They have a pellicle.
B) They are unicellular.
C) They are all photosynthetic.
D) Their cells contain mitochondria.
E) They have 9 + 2 arrangement of microtubules in their flagella.
Question
Which statement best describes the composition of cell walls found in water molds?

A) All individuals have only walls made of cellulose.
B) All individuals have only walls made of chitin.
C) All individuals have only peptidoglycan walls.
D) Some individuals have cell walls of chitin, and others have cell walls of cellulose.
E) Some individuals have cell walls of chitin, some have cell walls of cellulose, and some have cell walls of both chitin and cellulose.
Question
Figure 26-2 <strong>Figure 26-2   Refer to the accompanying figure. What is the process occurring in the cells labeled as 6?</strong> A) fusion B) mitosis C) fertilization D) the first meiotic division E) the second meiotic division <div style=padding-top: 35px> Refer to the accompanying figure. What is the process occurring in the cells labeled as 6?

A) fusion
B) mitosis
C) fertilization
D) the first meiotic division
E) the second meiotic division
Question
Which statement about radiolarians is FALSE?

A) They are rhizarians.
B) They have axopods.
C) They are actinopods.
D) They lack silica shells.
E) They have algal endosymbionts.
Question
Which type of protist is responsible for malaria in humans, parasitic to both humans and mosquitoes?

A) ciliates
B) actinopods
C) dinoflagellates
D) apicomplexans
E) foraminiferans
Question
What commercial product is derived from the processing of red algae?

A) milk
B) sushi
C) lipstick
D) ice cream
E) carrageenan
Question
Which protist is responsible for late blight of potatoes, the cause of the Irish potato famine in the mid 19th century?

A) Phytophthora
B) Myxomycota
C) Macrocystis
D) Physarum
E) Giardia
Question
Figure 26-3 <strong>Figure 26-3   Refer to the accompanying figure. Which protist group's life cycle is demonstrated in this figure?</strong> A) red algae B) green algae C) brown algae D) dinoflagellates E) foraminiferans <div style=padding-top: 35px> Refer to the accompanying figure. Which protist group's life cycle is demonstrated in this figure?

A) red algae
B) green algae
C) brown algae
D) dinoflagellates
E) foraminiferans
Question
Members of which group are known to form blooms known as red tides?

A) green algae
B) red algae
C) euglenoids
D) dinoflagellates
E) brown algae
Question
Which group of protists are unicellular, biflagellate stramenopiles that forms a significant portion of the nanoplankton?

A) ciliates
B) red algae
C) golden algae
D) foraminifera
E) brown algae
Question
Figure 26-2 <strong>Figure 26-2   What is the outcome of the process illustrated in the accompanying figure.?</strong> A) One male and one female cell B) Four new but genetically distinct cells C) Two new but genetically distinct cells D) Two new genetically identical cells that differ genetically from what they were before E) Four new genetically identical cells that differ genetically from what they were before <div style=padding-top: 35px> What is the outcome of the process illustrated in the accompanying figure.?

A) One male and one female cell
B) Four new but genetically distinct cells
C) Two new but genetically distinct cells
D) Two new genetically identical cells that differ genetically from what they were before
E) Four new genetically identical cells that differ genetically from what they were before
Question
Which protist group typically consists of amoeboid cells surrounded by a hard outer shell through which cytoplasmic projections extend?

A) rhizarians
B) unikonts
C) euglenoids
D) archaeplastids
E) opisthokonts
Question
Figure 26-3 <strong>Figure 26-3   Refer to the accompanying figure. What is the structure at point 6 in this life cycle?</strong> A) zygote B) gamete C) zoospore D) endospore E) pseudopod <div style=padding-top: 35px> Refer to the accompanying figure. What is the structure at point 6 in this life cycle?

A) zygote
B) gamete
C) zoospore
D) endospore
E) pseudopod
Question
The surface of a Paramecium is covered with thousands of short, hair-like ____.

A) plasmadesmata
B) pseudopods
C) trichomes
D) flagella
E) cilia
Question
Which are the symbiotic dinoflagellates, which live in the bodies of marine invertebrates such as corals?

A) ciliates
B) sporozites
C) apicomplexans
D) zooxanthellae
E) stramenopiles
Question
Figure 26-2 <strong>Figure 26-2   Refer to the accompanying figure. What is the process occurring in the cells labeled as 3 in the sequence?</strong> A) mitosis B) conjugation C) the first meiotic division D) exchange of micronucleus E) the second meiotic division <div style=padding-top: 35px> Refer to the accompanying figure. What is the process occurring in the cells labeled as 3 in the sequence?

A) mitosis
B) conjugation
C) the first meiotic division
D) exchange of micronucleus
E) the second meiotic division
Question
Within ciliates, what do the micronuclei control?

A) growth
B) movement
C) reproduction
D) cell signaling
E) growth and metabolism
Question
I am characterized by having a test and axopods. Who am I?

A) green algae
B) actinopods
C) opisthokonts
D) stramenopiles
E) foraminiferans
Question
Members of which protist group is one of the fossilized deposits in the unique geological formation of the White Cliffs of Dover?

A) diatoms
B) actinopods
C) diplomonads
D) foraminiferans
E) choanoflagellates
Question
Figure 26-3 <strong>Figure 26-3   Refer to the accompanying figure. What is occurring at point 1 of this life cycle?</strong> A) mitosis B) meiosis C) budding D) gamete fusion E) sexual reproduction <div style=padding-top: 35px> Refer to the accompanying figure. What is occurring at point 1 of this life cycle?

A) mitosis
B) meiosis
C) budding
D) gamete fusion
E) sexual reproduction
Question
Which protist groups consists of individuals who often have intracellular shells of interlocking plates?

A) diatoms
B) red algae
C) euglenoids
D) green algae
E) dinoflagellates
Question
Red tides are caused by red algae .
_________________
Question
Name the structure that allows motility in the following groups: amoebozoa, excavates, and ciliates.
Question
The body of a water mold is called a(n) mycelium .
_____________________
Question
Which protist group does not have flagellated cells?

A) water molds
B) brown algae
C) golden algae
D) euglenoids
E) red algae
Question
What is the translation of "pseudopodia," a characteristic of the amoebas?

A) slow feet
B) false pods
C) false feet
D) fake casings
E) similar moves
Question
When brown algae divide asexually, each new cell retains half of the original cell.
__________________
Question
Parabasilids are excavates that lack functional mitochondria and lack a Golgi complex.
_______________
Question
Members of the ____ move via pseudopodia.

A) rhizaria
B) excavates
C) amoebozoa
D) archaeplastids
E) chromalveolates
Question
An example of an excavate that has a pellicle is Euglena .
__________________
Question
Pseudopodia are used by Amoeba for ingesting food as well as for:

A) digestion.
B) excretion.
C) locomotion.
D) reproduction.
E) avoiding predation.
Question
The stramenopiles include water molds, diatoms, golden algae, and brown algae.
____________________
Question
Which protist group are characterized by a multinucleate amoeboid-like feeding form?

A) plasmodial slime molds
B) cellular slime molds
C) water molds
D) amoebozoa
E) brown algae
Question
Name the two main clades of Rhizaria, and then list one way of distinguishing one of those clades from the other.
Question
Of the following, which group exhibits a diverse morphology, forming unicells, filaments, and sheets?

A) diatoms
B) euglenoids
C) green algae
D) brown algae
E) dinoflagellates
Question
You find a unicellular organism that forms lobe-like pseudopodia. When you expose the cells to cAMP, they aggregate into a slug like structure. Based on this information, you correctly conclude that this organism is known as:

A) Chlamydomonas .
B) Chaos carolinense .
C) Entamoeba histolytica .
D) Dictyostelium discoideum .
E) Physarum polycephalum .
Question
Coralline forms of which group of protists are ecologically important in the formation of coral reefs?

A) red algae
B) euglenoids
C) green algae
D) brown algae
E) dinoflagellates
Question
Members of the ____ are thought to have given rise to plants.

A) red algae
B) diatoms
C) euglenoids
D) green algae
E) dinoflagellates
Question
According to the serial endosymbiosis hypothesis, the ancestors of mitochondria are thought to be purple bacteria .
____________________
Question
Identify the modes of nutrition found in members of the protists, and include two examples of each.
Question
You find a protist that has a single flagellum surrounded by a collar of microvilli. You correctly conclude that this organism is a(n):

A) plasmodial slime mold.
B) cellular slime mold.
C) choanoflagellate.
D) foraminiferan.
E) alveolate.
Question
Match between columns
Cellular slime molds and choanoflagellates
Excavates
Cellular slime molds and choanoflagellates
Chromalveolates
Cellular slime molds and choanoflagellates
Rhizarians
Cellular slime molds and choanoflagellates
Archaeplastids
Cellular slime molds and choanoflagellates
Unikonts
Red algae and green algae
Excavates
Red algae and green algae
Chromalveolates
Red algae and green algae
Rhizarians
Red algae and green algae
Archaeplastids
Red algae and green algae
Unikonts
Alveolates and stramenopiles
Excavates
Alveolates and stramenopiles
Chromalveolates
Alveolates and stramenopiles
Rhizarians
Alveolates and stramenopiles
Archaeplastids
Alveolates and stramenopiles
Unikonts
Diplomonads and euglenoids
Excavates
Diplomonads and euglenoids
Chromalveolates
Diplomonads and euglenoids
Rhizarians
Diplomonads and euglenoids
Archaeplastids
Diplomonads and euglenoids
Unikonts
Forams and actinopods
Excavates
Forams and actinopods
Chromalveolates
Forams and actinopods
Rhizarians
Forams and actinopods
Archaeplastids
Forams and actinopods
Unikonts
Excavates
Chromalveolates
Rhizarians
Archaeplastids
Unikonts
Excavates
Chromalveolates
Rhizarians
Archaeplastids
Unikonts
Excavates
Chromalveolates
Rhizarians
Archaeplastids
Unikonts
Question
Provide three diseases caused by protozoa. Include the causal organism, the group in which it is classified, and its means of transmission when possible.
Question
Foraminiferans are Rhizarians .
______________
Question
Discuss the role of protists in both primary and secondary serial endosymbiosis.
Question
The archaeplastids include the red algae and the green algae.
________________
Question
Explain why choanoflagellates are thought to be of particular evolutionary importance.
Question
Coccolithophorids are marine members of the brown algae .
________________
Question
Amoebozoans move by means of flagella .
_______________
Question
Land plants are thought to have arisen most directly from a(n) red algal ancestor.
___________________
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Deck 26: Protists
1
Ancestors of ____ may have possessed mitochondria, which were lost or reduced during evolutionary history.

A) Paramecium
B) Laminaria
C) Amoeba
D) Euglena
E) Giardia
E
2
Which is an anaerobic excavate that is an endosymbiont of animals?

A) diatom
B) euglenoid
C) parabasilid
D) actinopod
E) dinoflagellate
C
3
Which protist group possess a crystalline rod in their flagella?

A) ciliates
B) diatoms
C) euglenoids
D) water molds
E) zooxanthellae
C
4
Among the protist groups below, which has organisms that typically move with two or more flagella?

A) actinopods
B) amoebozoa
C) diplomonads
D) foraminifera
E) apicomplexans
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5
Some protists consist of a single cell with multiple nuclei. This condition is known as:

A) alternation of generations.
B) multicellular.
C) coenocytic.
D) mycelium.
E) colonial.
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6
Which protist group contains the organism Trypanosoma, a colorless parasite that can cause African sleeping sickness?

A) unikonts
B) excavates
C) rhizarians
D) archaeplastids
E) chromalveolates
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7
In primary endosymbiosis, an ancient eukaryotic cell engulfed a(n) ____, which survived and evolved into a chloroplast.

A) algae
B) virus
C) ciliate
D) euglenoid
E) cyanobacterium
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8
Most protists are ____, with each cell forming a complete organism capable of performing all the functions characteristic of life.

A) parasitic
B) colonial
C) unicellular
D) autotrophic
E) multicellular
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9
Figure 26-1 <strong>Figure 26-1   Refer to the accompanying figure. What is the function of the structure labeled as 6?</strong> A) digestion B) food intake C) water discharge D) waste elimination E) asexual reproduction Refer to the accompanying figure. What is the function of the structure labeled as 6?

A) digestion
B) food intake
C) water discharge
D) waste elimination
E) asexual reproduction
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10
Members of the alveolates are characterized by the presence of:

A) two or more flagella
B) chloroplast pigments
C) crystalline rod in the flagella
D) contractile vacuoles surrounded by a pellicle.
E) flattened vesicles under the plasma membrane.
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11
Which algal group contains individuals that are typically unicellular and form siliceous shells?

A) diatoms
B) red algae
C) brown algae
D) green algae
E) dinoflagellates
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12
Which protist group is characterized by having a micronucleus and a macronucleus?

A) ciliates
B) euglenoids
C) actinopods
D) diplomonads
E) amoebozoans
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13
The fossilized form of ____ is used in commercially important products, such as filters, polishes, and insect killer.

A) dinoflagellates
B) apicomplexans
C) zooflagellates.
D) euglenoids
E) diatoms
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14
Which eukaryotic organelles likely arose from symbiotic relationships between larger cells and bacteria?

A) nuclei
B) endoplasmic reticulums
C) vacuoles and chloroplasts
D) mitochondria and chloroplasts
E) mitochondria and Golgi complexes
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15
Most protists are:

A) aquatic.
B) parasitic.
C) terrestrial.
D) coenocytic.
E) thermophiles.
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16
Figure 26-1 <strong>Figure 26-1   Refer to the accompanying figure. What is the function of the structure labeled as 4?</strong> A) digestion B) food intake C) water discharge D) waste elimination E) asexual reproduction Refer to the accompanying figure. What is the function of the structure labeled as 4?

A) digestion
B) food intake
C) water discharge
D) waste elimination
E) asexual reproduction
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17
Given the diversity in protist ultrastructure and molecular data, biologists regard the protists as a(n) ____ group, meaning that some are descendants of a common eukaryote ancestor.

A) monophyletic
B) paraphyletic
C) polyphyletic
D) homoplastic
E) homologous
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18
Which protist clade (supergroup) is characterized by their greatly modified mitochondria?

A) excavates
B) unikonts
C) rhizarians
D) archaeplastids
E) chromalvolates
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19
Brown algae lack true roots, but have similar structures called ____ that anchor them to the substrate.

A) stipes
B) fronds
C) thalli
D) blades
E) holdfasts
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20
Which statement about euglenoids is FALSE?

A) They have a pellicle.
B) They are unicellular.
C) They are all photosynthetic.
D) Their cells contain mitochondria.
E) They have 9 + 2 arrangement of microtubules in their flagella.
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21
Which statement best describes the composition of cell walls found in water molds?

A) All individuals have only walls made of cellulose.
B) All individuals have only walls made of chitin.
C) All individuals have only peptidoglycan walls.
D) Some individuals have cell walls of chitin, and others have cell walls of cellulose.
E) Some individuals have cell walls of chitin, some have cell walls of cellulose, and some have cell walls of both chitin and cellulose.
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22
Figure 26-2 <strong>Figure 26-2   Refer to the accompanying figure. What is the process occurring in the cells labeled as 6?</strong> A) fusion B) mitosis C) fertilization D) the first meiotic division E) the second meiotic division Refer to the accompanying figure. What is the process occurring in the cells labeled as 6?

A) fusion
B) mitosis
C) fertilization
D) the first meiotic division
E) the second meiotic division
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23
Which statement about radiolarians is FALSE?

A) They are rhizarians.
B) They have axopods.
C) They are actinopods.
D) They lack silica shells.
E) They have algal endosymbionts.
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24
Which type of protist is responsible for malaria in humans, parasitic to both humans and mosquitoes?

A) ciliates
B) actinopods
C) dinoflagellates
D) apicomplexans
E) foraminiferans
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25
What commercial product is derived from the processing of red algae?

A) milk
B) sushi
C) lipstick
D) ice cream
E) carrageenan
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26
Which protist is responsible for late blight of potatoes, the cause of the Irish potato famine in the mid 19th century?

A) Phytophthora
B) Myxomycota
C) Macrocystis
D) Physarum
E) Giardia
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Unlock Deck
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27
Figure 26-3 <strong>Figure 26-3   Refer to the accompanying figure. Which protist group's life cycle is demonstrated in this figure?</strong> A) red algae B) green algae C) brown algae D) dinoflagellates E) foraminiferans Refer to the accompanying figure. Which protist group's life cycle is demonstrated in this figure?

A) red algae
B) green algae
C) brown algae
D) dinoflagellates
E) foraminiferans
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28
Members of which group are known to form blooms known as red tides?

A) green algae
B) red algae
C) euglenoids
D) dinoflagellates
E) brown algae
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29
Which group of protists are unicellular, biflagellate stramenopiles that forms a significant portion of the nanoplankton?

A) ciliates
B) red algae
C) golden algae
D) foraminifera
E) brown algae
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30
Figure 26-2 <strong>Figure 26-2   What is the outcome of the process illustrated in the accompanying figure.?</strong> A) One male and one female cell B) Four new but genetically distinct cells C) Two new but genetically distinct cells D) Two new genetically identical cells that differ genetically from what they were before E) Four new genetically identical cells that differ genetically from what they were before What is the outcome of the process illustrated in the accompanying figure.?

A) One male and one female cell
B) Four new but genetically distinct cells
C) Two new but genetically distinct cells
D) Two new genetically identical cells that differ genetically from what they were before
E) Four new genetically identical cells that differ genetically from what they were before
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31
Which protist group typically consists of amoeboid cells surrounded by a hard outer shell through which cytoplasmic projections extend?

A) rhizarians
B) unikonts
C) euglenoids
D) archaeplastids
E) opisthokonts
Unlock Deck
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Unlock Deck
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32
Figure 26-3 <strong>Figure 26-3   Refer to the accompanying figure. What is the structure at point 6 in this life cycle?</strong> A) zygote B) gamete C) zoospore D) endospore E) pseudopod Refer to the accompanying figure. What is the structure at point 6 in this life cycle?

A) zygote
B) gamete
C) zoospore
D) endospore
E) pseudopod
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33
The surface of a Paramecium is covered with thousands of short, hair-like ____.

A) plasmadesmata
B) pseudopods
C) trichomes
D) flagella
E) cilia
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34
Which are the symbiotic dinoflagellates, which live in the bodies of marine invertebrates such as corals?

A) ciliates
B) sporozites
C) apicomplexans
D) zooxanthellae
E) stramenopiles
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35
Figure 26-2 <strong>Figure 26-2   Refer to the accompanying figure. What is the process occurring in the cells labeled as 3 in the sequence?</strong> A) mitosis B) conjugation C) the first meiotic division D) exchange of micronucleus E) the second meiotic division Refer to the accompanying figure. What is the process occurring in the cells labeled as 3 in the sequence?

A) mitosis
B) conjugation
C) the first meiotic division
D) exchange of micronucleus
E) the second meiotic division
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36
Within ciliates, what do the micronuclei control?

A) growth
B) movement
C) reproduction
D) cell signaling
E) growth and metabolism
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37
I am characterized by having a test and axopods. Who am I?

A) green algae
B) actinopods
C) opisthokonts
D) stramenopiles
E) foraminiferans
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38
Members of which protist group is one of the fossilized deposits in the unique geological formation of the White Cliffs of Dover?

A) diatoms
B) actinopods
C) diplomonads
D) foraminiferans
E) choanoflagellates
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39
Figure 26-3 <strong>Figure 26-3   Refer to the accompanying figure. What is occurring at point 1 of this life cycle?</strong> A) mitosis B) meiosis C) budding D) gamete fusion E) sexual reproduction Refer to the accompanying figure. What is occurring at point 1 of this life cycle?

A) mitosis
B) meiosis
C) budding
D) gamete fusion
E) sexual reproduction
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40
Which protist groups consists of individuals who often have intracellular shells of interlocking plates?

A) diatoms
B) red algae
C) euglenoids
D) green algae
E) dinoflagellates
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41
Red tides are caused by red algae .
_________________
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42
Name the structure that allows motility in the following groups: amoebozoa, excavates, and ciliates.
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43
The body of a water mold is called a(n) mycelium .
_____________________
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44
Which protist group does not have flagellated cells?

A) water molds
B) brown algae
C) golden algae
D) euglenoids
E) red algae
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45
What is the translation of "pseudopodia," a characteristic of the amoebas?

A) slow feet
B) false pods
C) false feet
D) fake casings
E) similar moves
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46
When brown algae divide asexually, each new cell retains half of the original cell.
__________________
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47
Parabasilids are excavates that lack functional mitochondria and lack a Golgi complex.
_______________
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48
Members of the ____ move via pseudopodia.

A) rhizaria
B) excavates
C) amoebozoa
D) archaeplastids
E) chromalveolates
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49
An example of an excavate that has a pellicle is Euglena .
__________________
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50
Pseudopodia are used by Amoeba for ingesting food as well as for:

A) digestion.
B) excretion.
C) locomotion.
D) reproduction.
E) avoiding predation.
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51
The stramenopiles include water molds, diatoms, golden algae, and brown algae.
____________________
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52
Which protist group are characterized by a multinucleate amoeboid-like feeding form?

A) plasmodial slime molds
B) cellular slime molds
C) water molds
D) amoebozoa
E) brown algae
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53
Name the two main clades of Rhizaria, and then list one way of distinguishing one of those clades from the other.
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54
Of the following, which group exhibits a diverse morphology, forming unicells, filaments, and sheets?

A) diatoms
B) euglenoids
C) green algae
D) brown algae
E) dinoflagellates
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55
You find a unicellular organism that forms lobe-like pseudopodia. When you expose the cells to cAMP, they aggregate into a slug like structure. Based on this information, you correctly conclude that this organism is known as:

A) Chlamydomonas .
B) Chaos carolinense .
C) Entamoeba histolytica .
D) Dictyostelium discoideum .
E) Physarum polycephalum .
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56
Coralline forms of which group of protists are ecologically important in the formation of coral reefs?

A) red algae
B) euglenoids
C) green algae
D) brown algae
E) dinoflagellates
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57
Members of the ____ are thought to have given rise to plants.

A) red algae
B) diatoms
C) euglenoids
D) green algae
E) dinoflagellates
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58
According to the serial endosymbiosis hypothesis, the ancestors of mitochondria are thought to be purple bacteria .
____________________
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59
Identify the modes of nutrition found in members of the protists, and include two examples of each.
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60
You find a protist that has a single flagellum surrounded by a collar of microvilli. You correctly conclude that this organism is a(n):

A) plasmodial slime mold.
B) cellular slime mold.
C) choanoflagellate.
D) foraminiferan.
E) alveolate.
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61
Match between columns
Cellular slime molds and choanoflagellates
Excavates
Cellular slime molds and choanoflagellates
Chromalveolates
Cellular slime molds and choanoflagellates
Rhizarians
Cellular slime molds and choanoflagellates
Archaeplastids
Cellular slime molds and choanoflagellates
Unikonts
Red algae and green algae
Excavates
Red algae and green algae
Chromalveolates
Red algae and green algae
Rhizarians
Red algae and green algae
Archaeplastids
Red algae and green algae
Unikonts
Alveolates and stramenopiles
Excavates
Alveolates and stramenopiles
Chromalveolates
Alveolates and stramenopiles
Rhizarians
Alveolates and stramenopiles
Archaeplastids
Alveolates and stramenopiles
Unikonts
Diplomonads and euglenoids
Excavates
Diplomonads and euglenoids
Chromalveolates
Diplomonads and euglenoids
Rhizarians
Diplomonads and euglenoids
Archaeplastids
Diplomonads and euglenoids
Unikonts
Forams and actinopods
Excavates
Forams and actinopods
Chromalveolates
Forams and actinopods
Rhizarians
Forams and actinopods
Archaeplastids
Forams and actinopods
Unikonts
Excavates
Chromalveolates
Rhizarians
Archaeplastids
Unikonts
Excavates
Chromalveolates
Rhizarians
Archaeplastids
Unikonts
Excavates
Chromalveolates
Rhizarians
Archaeplastids
Unikonts
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62
Provide three diseases caused by protozoa. Include the causal organism, the group in which it is classified, and its means of transmission when possible.
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63
Foraminiferans are Rhizarians .
______________
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64
Discuss the role of protists in both primary and secondary serial endosymbiosis.
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65
The archaeplastids include the red algae and the green algae.
________________
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66
Explain why choanoflagellates are thought to be of particular evolutionary importance.
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67
Coccolithophorids are marine members of the brown algae .
________________
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68
Amoebozoans move by means of flagella .
_______________
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69
Land plants are thought to have arisen most directly from a(n) red algal ancestor.
___________________
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