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Cell Membrane Transport Worksheet KEY Exemplar

A worksheet reviewing key concepts of cell membranes and transport, including diffusion, osmosis, active transport, and membrane structure. Covers vocabulary and processes essential for understanding how substances move in and out of cells.

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NameAnswer KeyDatePerReviewing the Concepts: The Cell M e m b r a n e and Cell TransportPart I. V o c a b u l a r y Practice:Use rheword bank belowto iWin the blanks. AU words will be used.OsmosisDiffusionPermeableFacilitatedPhospholipidsHydrophobicProteinsCholesterolActive TransportPhagocytosisExocytosisHydrophilicSimple1.The dillusion of waier ac toss the cell membrane i s calleeosmosis2.The cell membrane is described as selectivelypermeablea so n|y pe r mjtscertainmolecules to pass through.It is composed of a bilayer ofphospholipids, withproteinsembedded within.3.Diff .isi o -s the movement of molecules from high concentration to low concentrationacross the cell membrane, whileactive transportmoves molecules against theirconcentration gradient.4.Withsimplediffusion, molecules can pass directly through the phospholipid bilayer, whilewithfacilitateddiffusion, molecules pass through a membrane protein.5.hole steroljSembedded within the cell membrane in crder to prevent the phospholipidsfrom sticking together.6.Each phospholipid is composed of a water-loving, orhydrophilicphosphate head anda water-fearing, orhydrophobiclipid tail.7.Phagocytosisis a form of active transport which takes in food particles by engulfing them.The opposite of this process is calledexocytosisPart I I . D i a g r a m L a b e l i n gUsingthe word bank, label the diagram ofthe cell membrane.Phosphate HeadLipid TailTransport ProteinCholesterolReceptor Protein
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Biology

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