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Cards In This Set
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What is a protist?
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A single or many celled organism that lives in moist or wet surroundings.
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What do amoeba, spirogyra, odonthalia and slime mold have in common?
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They all belong to the protist kingdom. They are single or many celled organisms that live in moist or wet surroundings.
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How do organisms in Kingdom Protista differ?
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Some contain chlorophyll and make their own food and some don't. Some are plantlike, animallike and others are funguslike.
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How did protists evolve?
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There isn't much evidence of the evolution of protists because few fossils have those organisms have been found. Scientists hypothesize that the common ancestor was a one-celled organism with a nucleus, mitochondria and other cellular structures.
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How did plantlike protists evolve differently from other protists?
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Evidence shows that protists that can't make their own food evolved differently from protists that do make their own food. Cyanobacterium, a bacteria that contains chlorophyll, was taken up by a one-celled organism with mitochondria. At this organism changed over time, the cyanobacterium became the organism's chloroplast. Plantlike protists probably developed from this organism.
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Where is an organism's food produced?
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In the chloroplast.
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Name the organisms in the Kingdom Protista.
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Amoeba - Odonthalia - Slime Mold - Spirogyra - Sporozoan - Volvox
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What is algae?
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A plantlike protist. Some species of algae have one cell and others are many celled. All algae can make their own food because they contain the pigment chlorophyll in their chloroplasts. they are grouped into six main phyla according to their structure, pigments and the way they store food.
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How are algae grouped?
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They are grouped into six main phyla according to their structure, pigments and the way in which they store food.
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What are the six main phyla of algae?
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Euglenoids - Diatoms - Dinoflagellates - Green Algae - Red Algae - Brown Algae
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What is a plantlike protist?
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Algae
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What is an Euglenoid?
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A phylum of algae that has characteristics of both plants and animals.
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What is Euglena and how is it similar to both plants and animals?
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Euglena is an example of a typical euglenoid. It is a one celled algae with chloroplasts and produces carbohydrates as food. When light is not present, euglenas feed on bacteria and protists. They have no cell walls and a strong flexible layer inside the cell membrane that helps them move and change shape. It has animal characteristics: whiplike tail called flagella and they have an adaptation called an eyespot that responds to light.
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What is a Chlamydomonas?
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A one celled green algae that is found mostly in freshwater ponds and in moist soil.
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Where will you find Dinoflagellates?
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Usually in the sea.
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