Chapter 9 Section 3:Protists
Cilia
Hairlike projections from the cell that move with a wavelike motion
What are the characteristics of animal-like, plantlike, and funguslike protists?
Like animals, animal-like protist are heterotrophs, and most are bale to move from place to place to obtain food. Like plants, plantlike protist are autotroph, are able to use the sun's energy to make their own food, and they can preform photosynthesis. Like fungi, funguslike protists are heterotrophs, have cell walls, and use spores to reproduce.
Describe the life cycle of a slime mold.
Slime mold begins their like as a tiny, individual amoeba-like cell. The cell use pseudopods to feed and creep around. Later, the cell grows bigger or joins another cell to form a giant, jellylike mass. When environmental conditions become harsh, spore-producing structure grows out of the mass and release spores.
What are the three types of fungus-like protist?
Slime mold, water mold, and downy mildew
What are the three types of funguslike protists?
Slime mold, water mold, and downy mold
True or false: All protists are unicellular.
False
True or false: All protists live in dry surroundings.
False
True or false: Flagellates living in symbiosis always harm the animal in which they live.
False
True or false: Fungus-like protist do not have cell wall.
False
True or false: Fungus-like protist never move during their lives.
False
What are plant-like protists are commonly called?
Algae
How do algae vary in organization, structure, and function?
Algae vary greatly in cell organization, structure, and function. Some algae are unicellular organisms that live together in colonies.
Protozoan
Animal-like protists
What are the three categories that scientists group protists?
Animal-like protists, plant-like protists, and fungus-like protists
How many contractile vacuoles does a celiate have?
2
How many nucleus does a celiate have?
2
Pseudopod
A "false foot" or temporary bulges of the cell that helps sacrodines move and eat
Symbiosis
A close relationship in which at least one of the species benefit.
Contractile vacuole
A structure that collects the extra water and then expels it from the cell
Spore
A tiny cell that is able to grow into new organisms
Mutualism
A type of symbiosis in which both partners benefit from living together
What are the kinds of algae?
Diatoms, dinoflagellates, euglenoids, red algae, green algae, and brown algae
Protist
Eukaryotes that cannot be classified as animals, plants, or fungi
What are the structures of a paramecium?
Paramecium have thousands of cilia, many food vacuoles, an oral groove, a cytoplasm, a large nucleus, a small nucleus, a pellicle, two contractile vacuoles, and an anal pore.
Algae
Plantlike protists
What are the four types of animal-like protists?
Protozoans with pseudopods (protozoans), protozoans with cilia (ciliates), protozoans with flagella (flagellates), and protozoans that are parasite
When do pseudopods form?
Pseudopods form when the cytoplasm flows towards one location and the rest of the organism follows.
What does the large nucleus of ciliates do?
The large nucleus controls the everyday tasks of the cell.
What does the small nucleus of ciliates do?
The small nucleus functions in reproduction.
What are the structures of an amoeba?
The structures that amoebas have are pseudopods, a cell membrane, a cytoplasm, a nucleus, a contractile vacuole, and food vacuoles.
True or false: All protists are eukaryotes that cannot be classified as animals, plants, or fungi.
True
True or false: Fungus-like protist are heterotrophs.
True
True or false: Fungus-like protist use spores the reproduce.
True
True or false: Paramecia have more than pine nucleus?
True
True or false: Some protists are heterotrophs, some are autotrophs, and some are both.
True