Term
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Definition
| regulates passage of substances in and out of the cell |
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Term
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Definition
| 50 lipids for every protein |
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Term
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Definition
| 75% basic frame work of plasma membrane has 2 parallel layers |
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Term
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Definition
| 5% only in the layer that faces extra cellular fluid |
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Term
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Definition
| cell to cell recognition and communication, regulation of cell growth and development |
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Term
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Definition
| polar and non polar regions |
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Term
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Definition
| phosphate head and is hydrophylic |
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Term
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Definition
| fatty acid tails hydrophobic tails face eachother |
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Term
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Definition
| 20% strengthens the membrane but decreases the flexibility |
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Term
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Definition
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Term
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Definition
| extend into and through the bilayer can be removed but will destroy the cell |
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Term
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Definition
| does not extend and can be easily detached from the membrane |
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Term
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Definition
| has a pore where certain substances flow in and out of the cell |
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Term
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Definition
| moves substance from one side of membrane to the other |
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Term
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Definition
| allows cells to recognize one another |
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Term
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Definition
| protects cells from being digested into extra celluar fluid |
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Term
| glycoclayx hydrophilic nature |
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Definition
| attracts a film on surface its slippery and helps cell flow through blood vessels |
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Term
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Definition
| identifies and attaches itself to a specific molecules also known as ligand |
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Term
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Definition
| specific molecule that binds to the receptor |
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Term
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Definition
| recognition of other cells of its own kind |
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Term
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Definition
| anchor filaments inside and outside of the cell. providing structural stability and shape |
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Term
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Definition
| moves sideways and changes places within layer, double bonded fatty acid tails, prevents them from packing to tightly |
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Term
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Definition
| if a needle is pushed through the membrane the puncture site heals |
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Term
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Definition
| substances that are lipid soluble pas through easily, non polar hydrophobic |
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Term
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Definition
| most large particles cant pass |
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Term
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Definition
| impermable to all charged molecules some move through |
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Term
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Definition
| movement from more concentrated to less, more na+ and o2 found outside of the cell more k+ and o2 found inside of the cell |
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Term
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Definition
| inner surface more negative outside surface more positive |
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Term
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Definition
| inside surface of the membrane |
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Term
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Definition
| form of potential energy between 20-200 millivolts |
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Term
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Definition
| movement to down concentration gradient and requires no atps or energy |
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Term
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Definition
| movement to against concentration gradient requires atps and energy |
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Term
| diffusion through lipid bilayer |
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Definition
| nonpolar hydrophobic molecules, membrane not selective no change in osmotic pressure |
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Term
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Definition
| must have transport proteins |
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Term
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Definition
| promotes insertion of glucose transporters into cell membrane |
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Term
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Definition
| to push certain ions and small molecules across the membrane |
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Term
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Definition
| cell expands energy to move substance against concentration gradient |
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Term
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Definition
| pump must work continously because of leakage 3 sodiums out and 2 potassiums in |
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Term
| secondary active transport |
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Definition
| coupled transport of two substances across membrane using energy supplies by primary active transport pumps |
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Term
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Definition
| two substances will move in the same direction across the membrane |
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Term
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Definition
| two substances will move in opposite direction across cell membrane |
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Term
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Definition
| movement of larger substances int the cell |
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Term
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Definition
| process that brings substances into the cell |
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Term
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Definition
| process of bringing substances out of the cell |
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Term
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Definition
| projections of plasma membrane |
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Term
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Definition
| surround large particles and engulf them |
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Term
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Definition
| membrane bounded sac occurs during phagocytosis |
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Term
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Definition
| undigested material released back into extracellular fluid by exocytosis |
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Term
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Definition
| cells that preform phagocytosis |
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Term
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Definition
| cell drinking, engulf tiny drop of extracellular fluid rather then solid particles |
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