Vocabulary - Cell Transport and Cell Membrane

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Active transport

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Movement of materials through a membrane using energy

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ATP

Back

The molecule in the cell that gives us energy (the energy molecule)

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Carbohydrate

Back

A large organic molecule made of many sugar molecules linked together

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Cell membrane

Back

The semipermeable membrane surrounding the cytoplasm of a cell

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Cellular transport

Back

The movement of materials into, out of, or within a cell

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Concentration

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How strong a solution is; ratio of solute to solvent

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Concentration gradient

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The difference in concentration of solute in a solution on either side of a membrane

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Diffusion

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Movement of material from an area that is crowded to an area that is less crowded

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Dynamic Equilibrium

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Result of diffusion where there is continuous movement of particles but no overall change in concentration

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Endocytosis

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Taking in of matter by a living cell