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17 Cards in this Set
- Front
- Back
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eukaryotes that cannot be classified
as animals, plants, or fungi |
Protists
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What are the 3 groups protists are divided into?
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Animal-Like, Plant-Like, Fungi-Like
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What characteristics do Animal like
Protists have? |
are heterotrophs
. . . most have locomotion . . . are unicellular . . . classified based on how they move and live . . . a.k.a "protozoans" |
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What characteristics do Plant
Like Protists have? |
aka "algae"
. . . are autotrophs . . . have colors indicating pigments used for photosynthesis . . . are unicellular, multicellular, and colonial |
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What characteristics do Fungi Like Protists have?
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are heterotrophs
. . . have cell walls . . . use spores to reproduce . . . unlike fungi, have locomotion at some point in lifecycle |
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What are sarcodines and what are their characteristics?
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with pseudopods ("false foot")
for locomotion and trapping food . . . and contractile vacuoles for pumping out excess water . . . Ex. Amoeba |
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What are ciliates and what are their characteristics?
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with cilia for locomotion
and feeding . . . and two nuclei, trading the smaller one during conjugation . . . having one or more contractile vacuoles |
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What are flagellates and what are their characteristics?
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with flagella for locomotion
. . . often living in other organisms 1) Parasites harming the host 2) Endosymbionts helping the host . . . Ex. Giardia Giardia . . . . . . spread by animals in rivers and streams, it is the cause of Hiker's Disease in humans Trypanosoma . . . . . . spread by the tsetse fly, it is the cause of African Sleeping Sickness in humans |
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What are Sporozoans Parasitic
Protozoans and what are their characteristics? |
feed on the cells and body fluid of a host
. . . most have no ability for locomotion . . . Malaria in humans is caused by the sporozoan Plasmodium and spread by mosquitoes |
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What are diatoms and what are their characteristics?
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. . . unicellular
. . . glasslike cell walls form protective boxes around cell . . . diatomaceous earth comes from the remains of diatoms; used for polishing, scouring, filtering, and as insecticide . . . use chlorophyll and a goldenbrown pigment for photosynthesis |
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What are dinoflagellates and what are their characteristics?
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. . . unicellular with armorlike
plates . . . spin using two flagella . . . use chlorophyll, red, orange, and brown pigments . . . produce toxins causing deadly "red tides" when they overpopulate . . . some glow in dark ("fire algae") |
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What are euglenoids and what are their characteristics?
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. . . unicellular with flagella
and no cell wall . . . most are autotrophic and heterotrophic . . . have an eyespot for sensing light |
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What are red algae and what are their characteristics?
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. . . most are multicellular
. . . found as deep as 260m . . . use red pigment good in low levels of light, and chlorophyll . . . important as food and in food products |
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What are green algae and what are their characteristics?
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. . . most are unicellular, some
colonial, some multicellular . . . most found in water, some on land in moist places . . . closely related to plants and have the same chlorophyll |
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What are brown algae and what are their characteristics?
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. use chlorophyll, brown,
yellow, and orange pigment . . . multicellular; most plantlike . . . includes Giant Kelp growing 100m long in "kelp forests" . . . important as food and in food products |
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What are slime molds and what are their characteristics?
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. . . often brightly colored
. . . live in moist shady places, feeding on decaying material . . . begin life as single amoebalike cells, then join together as jellylike mass . . . form stalks and spores when conditions are harsh |
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What are water molds and downy mildews? What are their characteristics?
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. . . live in water or moist places
. . . grow as a mass of white fuzzy threads and produce flagellated spores . . . water molds are parasites or decomposers of animals and plants . . . downy mildews are parasites of plants and cause serious damage to crops |
