Flashcard Set Preview
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| 1 |
FLUID MOSAIC MODEL
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THE PLASMA MEMBRANE: THIN BILAYER OF LIPID MOLECULES WITH PROTEIN PLUGGED INTO IT. PROTEINS...
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ARRANGEMENT OF PROTEINS, PHOSPHOLIPIDS, AND CARBOHYDRATES.
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phospholipids are arranged with both inner and outer layers, located int the bilipid layer...
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WHAT DO CELL MEMBRANES DO TO REGULATE ITS INTERACTIONS WITH THE OUTSIDE ENVIRONMENT?
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SOMETIMES CELLS INTERACT DIRECTLY WITH THE OUTSIDE ENVIRONMENT, BUT OTHER TIMES THEY RESPOND...
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SOLUTES
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THE SUBSTANCE THAT DISSOLVES IN A SOLUTION.
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SOLVENT
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USUALLY WATER IN THE BODY
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SOLUTIONS
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A COMBINATION OF SOLUTE AND SOLVENT
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DIFFUSION
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WHEN MOLECULES OR IONS MOVE FROM A CONCENTRATED AREA TO A LESS CONCENTRATED AREA
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OSMOSIS
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THE DIFFUSION OF A SOLVENT SUCH AS WATER, THROUGH A SELECTIVELY PERMEABLE MEMBRANE.
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HYPERTONIC
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CELLS LOSE WATER BY OSMOSIS AND SHRINK.
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ISOTONIC
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CELLS RETAIN THEIR NORMAL SIZE AND SHAPE (CORRECT STATE)
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HYPOTONIC
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CELLS TAKE UP WATER BY OSMOSIS UNTIL THEY BECOME BLOATED AND BURST
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PHAGOCYTOSIS
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(CELL EATING) TYPE OF ENDOCYTOSIS WHERE THE CELL ENGULFS SOME RELATIVELY LARGE OR SOLID MATERIAL....
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PINOCYTOSIS
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(CELL DRINKING) BIT OF INFOLDING PLASMA MEMBRANE SURROUNDS A VERY SMALL VOLUME OF EXTRA...
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EXOCYTOSIS
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SECRETION OR EJECTION OF A SUBSTANCE FROM A CELL.
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concentration gradient
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during diffusion, SOLUTES go from high concentrated areas to less concentrated areas DOWN THE...
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