BIOL 212 Chapter Notes - Chapter 12: Ion Channel, Temazepam, Optogenetics
19 Mar 2018
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Traveling wave of electrical excitation caused by rapid, transient, self-propagating depolarization of the plasma membrane in a neuron or other excitable cell; also called. Chapter 12: transport across cell membranes a nerve impulse. Movement of a solute across a membrane against its electrochemical gradient; requires an input of energy, such as that provided by atp hydrolysis. Type of coupled transporter that transfers two different ions or small molecules cross a membrane in opposite directions, either simultaneously or in sequence. Long thing extension that conducts electrical signals away from a nerve cell body toward remote target cells. Active transporter that uses energy supplied by atp hydrolysis to actively expel ca2+ from the cell cytosol. Protein that forms a hydrophilic pore across a membrane, through which selected small molecules or ions can passively diffuse. Active transporter that uses the movement of one solute down its electrochemical gradient to drive the uphill transport of another solute across the same membrane.
