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Page 70
... of passive transport : An ion does not simply diffuse down its concentration gradient , but diffuses down its electrochemical gradient . For example , the concentration of sodium ions ( Na1 ) inside a resting nerve cell is 70.
... of passive transport : An ion does not simply diffuse down its concentration gradient , but diffuses down its electrochemical gradient . For example , the concentration of sodium ions ( Na1 ) inside a resting nerve cell is 70.
Page 71
Neil A. Campbell. ions ( Na1 ) inside a resting nerve cell is much lower than outside it . When the cell is stimulated , gated channels that facilitate Na * diffusion open . Sodium ions then " fall " down their electrochemical gradient ...
Neil A. Campbell. ions ( Na1 ) inside a resting nerve cell is much lower than outside it . When the cell is stimulated , gated channels that facilitate Na * diffusion open . Sodium ions then " fall " down their electrochemical gradient ...
Page 82
... nerve cell , which uses exocytosis to release neurotransmitters that signal other neurons or muscle cells . When plant cells are making walls , exocytosis delivers proteins and certain carbohydrates from Golgi vesicles to the outside of the ...
... nerve cell , which uses exocytosis to release neurotransmitters that signal other neurons or muscle cells . When plant cells are making walls , exocytosis delivers proteins and certain carbohydrates from Golgi vesicles to the outside of the ...
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active transport animal cells artificial cell blood called cotransport cell is negative Cell-Cell Recognition cellular cholesterol concentration gradient Concentrations Affect Cells Concept 7.4 Concept Check cytoplasm decreasing extracellular drive the active electrochemical gradient Endocytosis In endocytosis Energy in Active exocytosis and endocytosis extracellular solution facilitated diffusion fluid mosaic model fungi glucose Golgi hydrogen ions hydrophobic hypertonic hypotonic environment inside isotonic lipid bilayer main electrogenic pump Maintenance of Membrane membrane potential membrane proteins Membrane Structure membrane traffic move solutes nerve cell neuron occurs by exocytosis osmosis osmotic passive transport phospholipids pinocytosis plant cells plasma membrane occurs positive charge potassium ions proteins are embedded protists proton pump pump of plants Pumps Ions receptor-mediated endocytosis Salt Concentrations Affect selectively permeable Self-Quiz side where solute signal sodium-potassium pump solute(s specific transport protein store energy substance sucrose uptake sucrose-H suggested answers three sodium ions translocates transport uses energy types of endocytosis voltage Water Balance