Cell transport f14
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| Active transport | movement of a particle through a membrane against a concentration gradient with the use of energy from ATP; from low to high areas
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| cilia | hair like organelles that line the surfaces of some cells that beat in rhythmic waves, providing locomotion
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| concentration gradient – | the difference in the amount of substances inside and outside of the cell
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| contractile vacuole | found in many microorganisms that expand, filled with water and then empties contents to the exterior.
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| diffusion | movement of particles from an area of high concentration to an area of low concentration.
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| facilitated diffusion – | type of passive transport that uses the aid of a protein to transport substances.
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| flagella– | tail like extension of cytoplasm for movement.
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| homeostasis | maintenance of the internal stability of a cell organism, or population in its environment
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| osmosis | movement of water through a membrane from area of high concentration to an area of low concentration
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| passive transport | The movement of a chemical substance across a cell membrane without expenditure of energy by the cell, as in diffusion.
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| perspiration | serves both as a means of excretion and as a regulator of body temperature through the cooling effect of its evaporation
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| protein pump – u | sed energy to moves substances form low to high concentrations
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| receptor proteins | have a high specific affinity for binding agents known to stimulate cellular activity.
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| stem cells | can divide (through mitosis) and differentiate into diverse specialized cell types
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| tissue | group of cells with a common structure and function
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