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Unit 5 CHAPTER 19 Protists 57
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CHAPTER 19
Section 1: Introduction to Protists
After reading the section in your textbook, respond to each statement.
1. Recall where protists are usually found.
2. Identify the characteristics an organism must have to be a member of Kingdom Protista.
3. Explain why the organization of Kingdom Protista will most likely change.
4. Apply the theory of endosymbiosis to the existence of photosynthetic protists.
5. Correct the following statement: Archaebacteria and certain of their organelles evolved from eubacteria and protists.
58 Protists CHAPTER 19 Unit 5
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he McG
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CHAPTER 19
Section 2: Protozoans—Animal-like Protists
After reading the section in your textbook, respond to each statement.
1. Name the characteristic of protozoans that biologists use for classification.
2. Describe the structure of an amoeba.
3. Compare and contrast the structure and function of cilia and flagella.
4. Decide whether sarcodines are more like ciliates or sporozoans. Explain.
5. Speculate about whether or not a paramecium that lives in the ocean would need a contractile vacuole.
Unit 5 CHAPTER 19 Protists 59
Cop
yrig
ht ©
Gle
ncoe
/McG
raw
-Hill
, a d
ivis
ion
of T
he M
cGra
w-H
ill C
ompa
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, Inc
.
Name Date Class
SectionQuick Check
CHAPTER 19
Section 3: Algae—Plantlike Protists
After reading the section in your textbook, respond to each statement.
1. List the three characteristics scientists use to classify algae.
2. Discuss the reasons that green algae are considered the algae most like plants.
3. Summarize the process of alternation of generations, which occurs in the life cycles of many algae.
4. Differentiate the way in which diatoms store their food from the way in which other algae store food.
5. Assess the importance of algae to humans.
60 Protists CHAPTER 19 Unit 5
Copyright ©
Glencoe/M
cGraw
-Hill, a division of T
he McG
raw-H
ill Com
panies, Inc.
Name Date Class
SectionQuick Check
CHAPTER 19
Section 4: Funguslike Protists
After reading the section in your textbook, respond to each statement.
1. State where water molds and downy mildews live.
2. Recount how a downy mildew affected the population of the United States in the nineteenth century.
3. Discuss why slime molds in the phylum Myxomycota are called acellular.
4. Compare and contrast slime molds and fungi.
5. Distinguish the motile masses of acellular and cellular slime molds.
