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Page 67
... ion concentration ( [ K ] ) is low outside the cell and high inside . The pump oscillates between two conformational states in a pumping cycle that translocates three sodium ions out of the cell for every two potassium ions pumped into the ...
... ion concentration ( [ K ] ) is low outside the cell and high inside . The pump oscillates between two conformational states in a pumping cycle that translocates three sodium ions out of the cell for every two potassium ions pumped into the ...
Page 70
... ions across a membrane : a chemical force ( the ion's concentration gradient ) and an electrical force ( the effect of the membrane potential on the ion's movement ) . This combination of forces acting on an ion is called the ...
... ions across a membrane : a chemical force ( the ion's concentration gradient ) and an electrical force ( the effect of the membrane potential on the ion's movement ) . This combination of forces acting on an ion is called the ...
Page 72
... ions out of the cell for every two potassium ions it pumps into the cell . With each " crank " of the pump , there is a net transfer of one positive charge from the cytoplasm to the extracellular fluid , a process that stores energy in ...
... ions out of the cell for every two potassium ions it pumps into the cell . With each " crank " of the pump , there is a net transfer of one positive charge from the cytoplasm to the extracellular fluid , a process that stores energy in ...
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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