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7thgradeBiologyTest5
terms on protists and some other stuff
Question/term/structure | Answer/definition/function |
---|---|
protist | A eukaryotic organism that cannot be classified as an animal, plant, or fungus. |
autotroph | An organism that makes its own food. |
cilia | The hairlike projections on the outside of cells that move in a wavelike manner. |
contractile vacuole | The cell structure that collects extra water from the cytoplasm and then expels it from the cell. |
eukaryote | An organism whose cells contain nuclei. |
flagellum | A long, whiplike structure that helps a cell to move. |
heterotroph | An organism that cannot make its own food. |
multicellular | Consisting of many cells. |
parasite | An organism that lives inside or on another organism and takes food from the organism in or on which it lives. |
protozoans | An animal-like protist. |
pseudopod | A “false foot” or temporary bulge of the cytoplasm used for feeding and movement in some protozoans. |
spore | A tiny cell that is able to grow into a new organism. |
unicellular | Consisting of only one cell. |
algae | Plantlike protists. |
facts about Kingdom Protista | ALL are eukaryotes MOST are unicellular; THIRD kindom to evolve EXTREMELY diverse, i.e. "Odds and Ends" or "Junk" Kingdom; 3 main categories; some are heterotrophs, some are autotrophs, some are both |
What are the three main categories of Kingdom Protista? | Plant-like, animal-like, and fungus-like |
What are the three types of protozoans | Sarcodines, ciliates, and flagellates. |
What are the six types of algae? | Diatoms, dinoflagellates, euglenoids, red algae, green algae, and brown algae |
mutualism | A type of symbiosis in which both partners benefit from living together. |
symbiosis | A close relationship between two organisms in which at least one of the organisms benefits. |
pigments | A chemical that produces color. |
What are the types of funguslike protists? | Slime molds, water molds, and downy mildews. |
Where do most water molds and downy mildews live? | Water and other moist places. |
What type of protozoan feeds on the cells and body fluids of their host? | Parisite protozoans. |
Do paramecia have more than one nucleus? | yes |
What do amoeba use for movement? | pseudopods |
What do paramecium use for movement? | cilia |
What do flagellate use for movement? | flagella |
Are euglena unicellular or multicellular? | unicellular |
What are the two ways euglena get their food? | Photosynthesis and absorbing it. |
Where would you find a euglena? | In quiet ponds or puddles. |
What detects light in the euglena? | The eyespot. |
What the function of the pellicle? | To help keep the cells shape. |
How does the amoeba reproduce? | Usually by binary fission. |
What is the eating process of the amoeba? | They extend a pseudopod on each side of the food particle. The two pseudopods then join together, trapping the particle inside. |
What is the difference between the endoplasm and the ectoplasm? | The endoplasm is the darker cytoplasm that is found toward the interior of the protozoan while the ectoplasm is the clear part of the cytoplasm found near the cell membrane. |
Where would you find an amoeba? | In ponds or puddles, sometimes humans. |
Where can you find a paramecium? | In fresh and marine water containing bacteria, and decaying matter. |
What is the function of the macronucleus? | To control most of the metabolic functions of the cell. |
What is the function of the micronucleus? | It's involved primarily in reproductive and hereditary functions. |
What are the names of the two nuclei paramecium have? | The macronucleus and the micronucleus. |
What would happen if paramecium didn't have contractile vacuoles? | They would lyse (burst). |
How does undigested food leave the paramecium? | It leaves through the anal pore. |
facts about plant-like protists | some are unicellular, some are multicellular; autotrophs, though some can be heterotrophs under certain conditions and some are completely heterotrophic; BIG producers of oxygen; FYI green algae is closely related to plants (bothe have chloroplasts). |
facts about animal-like protists | ALL one celled; ALL heterotrophs; MOST move; grouped by MOVEMENT/LIFE STYLE (i.e. pseudopods, cilia, flagella, parasites) |
facts about fungus-like protists | Heterotrophs, like to decompose; cell walls; some unicellular, some multicellular, some giant cell with many nuclei; spores for reproduction; often BRIGHT COLORED |
Trypanosoma | causes African sleeping sickness |
Plasmonia | causes malaria |
Gonyaulax | causes red tide |