#9360
PROTISTS
VISUAL LEARNING CO.
2001
Grade Levels: 6-12
20 minutes
3 Instructional Graphics Enclosed
DESCRIPTION
What are protists? How do they affect our lives? Examines the environments and structures of
different kinds of protists. Some act like plants (Euglena, algae, diatoms, volvox), some like
animals (amoebas, ciliates, parameciums, zooflagellates), and some like fungi (slime mold).
ACADEMIC STANDARDS
Subject Area: Science: Life Sciences
• Standard: Understands the structure and function of cells and organisms
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Benchmark: Knows that all organisms are composed of cells, which are the
fundamental units of life; most organisms are single cells, but other organisms
(including humans) are multicellular
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Benchmark: Knows the levels of organization in living systems, including cells, tissues,
organs, organ systems, whole organisms, ecosystems, and the complementary nature of
structure and function at each level
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Benchmark: Knows that disease in organisms can be caused by intrinsic failures of the
system or infection by other organisms
• Standard: Understands relationships among organisms and their physical environment
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Benchmark: Knows factors that affect the number and types of organisms an
ecosystem can support (e.g., available resources; abiotic factors such as quantity of light
and water, range of temperatures, and soil composition; disease; competition from
other organisms within the ecosystem; predation)
INSTRUCTIONAL GOALS
1. To understand that protists belong to the Kingdom Protista and come in a wide variety of
shapes, sizes, and colors.
2. To define protists as single-celled or multicellular organisms that contain a nucleus.
3. To differentiate between plantlike protists, animal-like protists, and funguslike protists.
4. To identify and describe the major features of euglenas, diatoms, and dinoflagellates.
5. To provide examples of how algae are utilized in everyday life.
6. To describe the major characteristics of ciliates, zooflagellates, and sporozoans.
7. To explain the major characteristics of fungus-like protists.
8. To differentiate between and describe the characteristics of green, red, and brown algae.
9. To describe harmful diseases that are caused by protists, such as giardia and malaria.
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Captioned Media Program
VOICE 800-237-6213 • TTY 800-237-6819 • FAX 800-538-5636 • EMAIL [email protected] • WEB www.cfv.org
Funding for the Captioned Media Program is provided by the U.S. Department of Education
VOCABULARY
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cell membrane
chloroplasts
cilia
contractile vacuole
cytoplasm
dinoflagellates
eukaryotic
food vacuole
fungus
macronucleus
micronucleus
nucleus
oral groove
phytoplankton
pigments
protozoans
pseudopod
DURING SHOWING
Applications and Activities
1. View the video more than once, with one showing uninterrupted.
2. Answer the “Video Review” questions as they are presented in the video. (See
INSTRUCTIONAL GRAPHICS.)
AFTER SHOWING
Discussion Items and Questions
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What lives in the oceans?
Of what does the kingdom of Protista contain?
What are protists? What do they look like?
What are eukaryotic cells?
Where do protists commonly live?
What are the three types of protists?
Name some protists.
How does the euglena create their own food?
How do other protists survive?
What is phytoplankton?
What do most life forms, directly or indirectly, depend on?
Phytoplankton contributes ___ of the world’s oxygen supply.
What are algae? How do they create food?
Describe the six main groups of algae.
What’s the job of the chloroplast?
What’s a flagellum?
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Captioned Media Program
VOICE 800-237-6213 • TTY 800-237-6819 • FAX 800-538-5636 • EMAIL [email protected] • WEB www.cfv.org
Funding for the Captioned Media Program is provided by the U.S. Department of Education
What are diatoms?
What does the shell of diatoms contain?
For what are diatoms used today?
What are dinoflagellates?
What is meant by “red tide poisoning”?
What gives the sea water its greenish color?
How many species of algae are there worldwide?
Where else do algae live?
What is kelp?
What compound do brown algae produce?
What is a heterotroph?
Describe the four main groups of protozoa.
Describe the physical characteristics of an amoeba.
What’s a pseudopod?
What does a contractile vacuole do?
Define cilia and describe its function.
Why is it essential to bring your own water with you while hiking or camping, no matter how
clean the lake or stream water may look?
34. What are sporozoans?
35. What causes malaria?
36. What damaged Ireland’s potato crop that started in 1845?
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Applications and Activities
1. Investigate the disease malaria. What is its impact on the world’s population? What causes
this disease? How does it spread? How does it harm the human body? Is there a cure?
2. Using a microscope, observe different micro-organisms found in pond water. Identify,
sketch, and classify what you found. Indicate how they move.
3. Label the body parts of the amoeba and the paramecium. (See INSTRUCTIONAL
GRAPHICS.)
4. Complete the “Video Quiz” presented at the end of the video. (See INSTRUCTIONAL
GRAPHICS.)
RELATED RESOURCES
CMP
Captioned Media Program
• The Biology of Ciliates #3583
• The Biology of Flagellates and Amoebas #3584
• Life Story of the Paramecium #2493
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Captioned Media Program
VOICE 800-237-6213 • TTY 800-237-6819 • FAX 800-538-5636 • EMAIL [email protected] • WEB www.cfv.org
Funding for the Captioned Media Program is provided by the U.S. Department of Education
World Wide Web
The following Web sites complement the contents of this guide; they were selected by professionals who
have experience in teaching deaf and hard of hearing students. Every effort was made to select
accurate, educationally relevant, and “kid safe” sites. However, teachers should preview them before
use. The U.S. Department of Education, the National Association of the Deaf, and the Captioned Media
Program do not endorse the sites and are not responsible for their content.
• LIFE SCIENCE CONNECTIONS
http://vilenski.org/science/safari/menu/index.html
“Phew! What a day! I found 5 different types of living things to show you! Wanna see?” So
begins this exploration, with protists, fungus, and bacteria being 3 of the 5 different types of
living things explained.
• PROTISTS
http://www.microbe.org/microbes/protists1.asp
Defines, explains, and presents pictures of various protists. Solve microbe mysteries! From the
American Society for Microbiology site.
• EUKARYOTA: SYSTEMATICS
http://www.ucmp.berkeley.edu/alllife/eukaryotasy.html
Move deeper into the systematics of eukaryotic groups by selecting one of the pictures!
Clicking on “green algae” presents a bigger and close-up picture of what it looks like and a brief
description is provided—with clickable vocabulary words within the text.
INSTRUCTIONAL GRAPHICS
• VIDEO REVIEW
• VIDEO QUIZ
• AMOEBA AND PARAMECIUM
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Captioned Media Program
VOICE 800-237-6213 • TTY 800-237-6819 • FAX 800-538-5636 • EMAIL [email protected] • WEB www.cfv.org
Funding for the Captioned Media Program is provided by the U.S. Department of Education
#9360 PROTISTS
Captioned Media Program
Video Review
Directions:
During the course of the program, answer the “You Decide” questions as they are
presented in the video.
You Decide:
A.
What similarities do you see between these protists?
Answer:
_____________________________________________
________________________________________________________
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What organisms produce the color patterns seen here in this
image of the Earth’s oceans?
Answer:
_____________________________________________
________________________________________________________
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What gives this sea water its greenish color?
Answer:
_____________________________________________
________________________________________________________
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What kind of algae is this kelp?
Answer:
_____________________________________________
________________________________________________________
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What small structures cover this ciliate?
Answer:
_____________________________________________
________________________________________________________
F.
What damaged the potato crop?
Answer:
_____________________________________________
________________________________________________________
Captioned Media Program
VOICE 800-237-6213 TTY 800-237-6819 FAX 800-538-5636 EMAIL [email protected] WEB www.cfv.org
Funding for the Captioned Media Program is provided by the U.S. Department of Education
#9360 PROTISTS
Captioned Media Program
Video Quiz
Directions:
Answer the questions at the end of the video.
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Protist cells contain a _______________________________________.
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Protists tend to live in ___________________________ environments.
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________________ are plantlike protists living on the ocean surface.
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__________________________ are one-celled algae containing silica.
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Some poisonous dinoflagellates cause harmful ___________________.
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Green, red, and brown __________________ are common in lakes and
oceans.
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______________________________ exhibit animal-like characteristics.
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This common sarcodine is an _________________________________.
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Ciliates possess small _______________________________________.
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Malaria is caused by a ______________________________________.
Captioned Media Program
VOICE 800-237-6213 TTY 800-237-6819 FAX 800-538-5636 EMAIL [email protected] WEB www.cfv.org
Funding for the Captioned Media Program is provided by the U.S. Department of Education
#9360 PROTISTS
Captioned Media Program
Amoeba and Paramecium
Directions: Identify the structures of the amoeba using the descriptions
provided below.
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Cytoplasm: fluidlike mixture containing organelles
Food vacuole: surrounds, engulfs, and digests food
Pseudopod: extension from body that propels the protist
Cell membrane: decides what enters and exits the protist
Nucleus: control center of the cell containing hereditary material
Directions: Identify the structures of the paramecium using the descriptions
provided below.
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___ Macronucleus: the larger of the paramecium’s two nuclei
___ Oral groove: food particles are swept into the groove by cilia; a food
vacuole waits at the end of the groove where it then engulfs the food
and brings it into the paramecium
___ Cilia: hairlike threads that propel the paramecium through the water
___ Contractile vacuole: rids cell of excess water and some wastes
___ Micronucleus: controls protein synthesis, respiration, and reproduction;
the smaller of the two nuclei
___ Food vacuole: digests food that enters the paramecium
Captioned Media Program
VOICE 800-237-6213 TTY 800-237-6819 FAX 800-538-5636 EMAIL [email protected] WEB www.cfv.org
Funding for the Captioned Media Program is provided by the U.S. Department of Education