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| a property of biological mebranes, where the membrane can regulate the passage of certain subtances |
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| a trnsmembrane protein that goes through the enitre membrane |
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| a membrance attached to an integral protein that doe not go through the cell membrane |
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| a lipid attached to a carb |
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| a protein attached to a protein |
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| a transmembrane protein that allows for a single protein (or ometimes a group of cosely related proteins) cross the plasma membrane |
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| a transport protein that facilitates osmosis |
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| density of a substance where relative areas of hig hand low exist |
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| causes cell to gain or lose water (ability to) |
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| relatively equal amounts of water |
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| relatively unqueal amounts of waret, too little water |
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| relatively unequal amounts of water, too much water |
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| control of water balance in a cell |
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| lacking fullness, PLANT CELL WITH IN iostonic |
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| cell loses water in a hypertonic enviornment (plant!!) |
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| spontanious movement of molecules or ions across plasma mem with assistance from transport proteins |
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| transmembrace protein that allows 1 ion to move DOWN its gradient |
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| moves sodium out of cell, moves potassium into cell VS EACH GRADIENT |
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RANGE -50 --> -200 MILIVOLTS, voltage across membrane
ITSL IKE A BETTERY |
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| gradient of an ion, affected by concentration difference across membrane (chemical froce) and its tendency to move relatice to the plasma mem (electrica force) |
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| ion pump protein that generates voltage along the plasma membrane |
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| active transport pump that uses ATP to transport H+ out of the cell (vs. gradient) generating membrane potential enegy in the process |
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| when n ATP powered pump indirectly drive several other solutes (go in together, like H+ and sucrose) |
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| the cellular secretion of waste, vesicles fuse with plasma mem |
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| a type of endocytosis in which large particulate substances are taken up by a cell USES PSEUDOPODS!!! |
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| a type of endocytosis in which the cell ingests a large amount of extracellular fluid |
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| Receptor-Mediated Endcytosis |
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Definition
| the movement of specific molecules via engulfing an extracellular substance with receptors |
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| a molecule that binds to another molecule (usually a larger one)help w/ receptor mediated endocytosis (attach to receptors!!) |
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| the movement of water across a selectively permiable membrane |
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| Cellular uptake of biological molecules and particulate matter via formation of new vesicles from the plasma membrane. |
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| moe to less concentration from high concentration |
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| animal cell in hypotonic soln |
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| animal cell is hypertonic soln |
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