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13 Cards in this Set
- Front
- Back
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What is a cell membrane?
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The semipermiable membrane that encloses the cytoplasm of a cell.
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What is a cytoplasm?
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The space between the cell membrane and the nucleus of a cell.
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What is diffusion?
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The process by which particles move from an area of higher to lower concentration.
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What is Osmosis?
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When water diffuses or moves from an area of higher to lower concentration across a selectively permeable membrane.
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What is selectively permeable?
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The process by which membranes select certain substanes to permeate, or pass through, depending upon the size of the pore found in the membrane and the substance attempting to pass through.
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What is Bacteria?
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Unicellular, spherical or spiral or rod-shaped organisms lacking nuclei proharyote.
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What is Protist?
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Unicellular organisms that contain nuclei which includes protozones like amoeba and paramecians. Eukraryote.
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What is a Virus?
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Simple microscopic parasites of plants, animals and bacteria that often cause disease. Not considered cells or alive because they can not reproduce without being inside another cell.
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What is Classification?
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The systematic grouping of organism into categories on the basis of evolutionary or structural relationships between them; also know as taxonomy.
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What is Heterotroph?
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An organism that cannot make its own food.
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What is a Autotroph?
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An organism that can make its own food.
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What is a Prokaryote?
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An organism whose cells lack a nuclei.
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What is a Eukaryote?
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An organism whose cells include a nuclei.
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