PROTISTS

ANIMAL-LIKE PROTISTS Protozoans Heterotrophic (Obtain food from other

organisms) Four

PROTOZOA WITH PSEUDOPODS A pseudopod is a temporary bulge of

the cell membrane filled with cytoplasm It is used for feeding and movement Another Name: Sarcodines A member of this group: Ameoba

PROTOZOA WITH CILIA Hair-like projections that move in a

wavelike pattern. It is used for movement, feeding, and to sense the environment.

The large nucleus controls the everyday tasks and the small nucleus functions in reproduction.

Ciliates is another name Paramecium are a common member.

PROTOZOA WITH FLAGELLA A flagellum is a long, whip-like structure

that is used for movement Zooflagellates have one to eight long,

whip-like flagella to help them move. They live inside the bodies of other organisms.

Symbiosis: A close relationship between two species where at least one species benefits.

DIVERSE PROTOZOA Move The way they LIVE and MOVE Sporozoan: Parasites that feed on the

cells and body fluids of their hosts.

FUNGUS-LIKE PROTISTS Get their food from their environment Heterotrophs Fungus; move

FUNGUS-LIKE PROTISTS Water Molds

Water or moist placesThey grow as tiny threads that look like a

fuzzy covering on a living organism

FUNGUS-LIKE PROTISTS Slime Molds

In moist soil and on decaying plants and trees

When food is scarce, they will creep together and form a multicellular mass

They move in an amoeba-like way by forming pseudopods and oozing along the surfaces of decaying material.

Spore: Tiny cell that can grow into a new organism

PLANT-LIKE PROTISTS Algae Chloroplasts; sun Autotrophs (make their own food)

PLANT-LIKE PROTISTSEuglenoids No Cell Wall Unicellular Use a flagella for movement

They are unique because when sunlight isn’t available, they become heterotrophic and EAT.

PLANT-LIKE PROTISTS Dinoflagellates

Bodies are covered by stiff platesThey live in the waterHave two flagella and contain chlorophyll as

well as other pigments

Random fact: They can glow in the dark!

PLANT-LIKE PROTISTS Diatoms are unicellular with glass-like

cell walls. They move by shooting chemicals out of

their cell walls. This gives them a kind of jet propulsion.

PLANT-LIKE PROTISTS Green algae

Where do they live? Freshwater, saltwater, at the bases of trees/in moist soil

Most are unicellular, some form colonies, and a few are multicellular

PLANT-LIKE PROTISTS Red algae

They are multicellular SEAWEEDSTheir red color is beneficial because:

They can live deep below the ocean’s surface The red pigment is good at absorbing a small

amount of light.

PLANT-LIKE PROTISTS Brown algae

A pigment is a chemical that produces color In the Pacific coastal waters, brown algae

makes the GIANT KELP.

AUTOTROPH (WRITE THIS IN THE PLANT-LIKE PROTIST SECTION)

An organism that has the ability to make its own food.

PROTIST REVIEW QUESTIONS 1. Define heterotroph and autotroph.

Give an example of each.2. Describe how protists are different

from animals, plants, and fungus.3. Explain the difference between

unicellular and multicellular.4. What are the three concepts of the cell

theory.

Spore: tiny cell that can grow into a new organism

DEFINE HETEROTROPH AND AUTOTROPH. GIVE AN EXAMPLE OF EACH.

A heterotroph cannot make its own food, so it has to get it from another organism.

An autotroph can make its own food.

Examples:Heterotroph: Animals or FungusAutotroph: Plants

DESCRIBE HOW PROTISTS ARE DIFFERENT FROM ANIMALS, PLANTS, AND FUNGUS. Protists are much simpler than plants,

animals, and fungus. They are typically unicellular, while

plants, animals, and fungus are multicellular.

EXPLAIN THE DIFFERENCE BETWEEN UNICELLULAR AND MULTICELLULAR.

Unicellular: A single celled organism Multicellular: Many cells make up one

organism

WHAT ARE THE THREE CONCEPTS OF THE CELL THEORY. Every living thing is made up of one or

more cells. Cells carry out the functions needed to

support life Cells come only from other living cells

WHAT CHARACTERISTICS DO ALL PROTOZOANS SHARE? Heterotrophic Able to move from place to place

3 CHARACTERISTICS OF FUNGUS-LIKE PROTISTS Heterotrophic Cell Walls Reproduce with spores

WHAT CHARACTERISTIC DO ALGAE SHARE WITH PLANTS Autotrophic

WOULD YOU CLASSIFY EUGLENA AS AN ANIMAL-LIKE PROTIST OR AS A PLANT-LIKE PROTIST? EXPLAIN. Answers will vary.