29-1
Chapter 29
Protists
Multiple Choice Questions
1. Sponges (phylum: Porifera) are animals that possess feeding cells called collar cells. These
cells have a central flagellum surrounded by a collar of microvilli. The collar filters organic
matter out of the water column. Which protist shares a more recent common ancestor with the
poriferans?
29-2
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you already know about Porifera? How does it relate to the question?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
2. The polysaccharides agarose and carrageenan are isolated from red algae for commercial
use. These polysaccharides are found in cell walls. What plant polysaccharide are they
analogous to?
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Clarify Question
•
What is the key concept addressed by the question?
• What type of thinking is required?
Gather Content
•
What do you already know about agarose and carrageenan? How does this help you
decide which statements are true?
• What other information do you need to determine the answer?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
the options make up plant cell walls?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
3. The Irish potato famine in the 1840’s was caused in large part by a proliferation of a(n)
4. What type of cellular damage in a malarial parasite would prevent it from penetrating a red
blood cell?
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Clarify Question
•
What is the key concept addressed by the question?
Plasmodium, possibly killing it, but only one would prevent it from entering a red blood cell.
Gather Content
•
What type of thinking is required?
•
What do you already know about Plasmodium? How does it relate to the question?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
5. Which feature unites paramecia, malarial parasites, and dinoflagellates into a single
group?
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Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you already know about each of these three groups? How does it relate to the
question?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
6. Transferring Euglena into a dark environment results in the loss of photosynthetic
pigment. What conclusion does this support?
29–10
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you already know about Euglena? How does it relate to the question?
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
29–11
7. A patient, Jennifer, presents in an ER with severe stomach cramps and diarrhea. She was
recently swimming in unclean water. Which protist would be the most likely cause of her
symptoms?
29–12
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you already know about these organisms? How does it relate to the question?
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
8. During cell division the progeny of a trypanosome express a different VSG gene than their
parents. Why is this done?
9. What would be strong evidence to suggest a protist is phagotrophic?
29–14
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you already know about the nutritional strategies of protists? How does it relate
to the question?
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
10. What would be strong evidence to suggest a protist is phototrophic?
29–16
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you already know about the nutritional strategies of protists? How does it relate
to the question?
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
11. Select the closest relative to a squirrel.
29–18
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you already know about squirrels? How does it relate to the question?
•
What other information is related to the question? Which information is most useful?
“Land Plants and Charophytes” is most closely related to Chlorophytes (green algae).
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
12. Which feature of mitochondria provides the least amount of information about their
endosymbiotic origins?
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you already know mitochondria and endosymbiosis? How does it relate to the
question?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?