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11 Cards in this Set
- Front
- Back
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Active Transport
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Use of a plasma membrane carrier protein to move a molecule or ion from a region of lower concentration to one of high concentration.
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Facilitated Diffusion
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a process of passive transport
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Atomic Number
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Number of proteins within the nucleus of an atom
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Atomic mass-
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mass of an atom equal to the number of protons plus the number of neutrons within the nucleus.
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Hydrogen Bond
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Weak bond that aries between a slightly positive hydrogen atom of one molecule and a slightly negative atom of another molecule between parts of the same molecule.
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Polar BOnd`
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bond in which the sharing of electrons between atoms is unequal
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Covalent bond
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bond in which the sharing of electrons between atoms is equal.
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Hypotonic Solution
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Lower solute (more water) concentration than the cytoplasm of a cell. causes cell to gain water by osmosis
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Hypertonic Solution
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Higher solute concentration (less water) than the cytoplasm of the cell, causes the cell to lose water by osmosis.
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Hydrolysis
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Splitting of a compound by the addition of water.
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Isotonic
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solution that is equal in solute concentration to that of the cytoplasm of a cell: causes cell to neitehr lose or gain water.
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