Electrophysiology I=Vg IV plots are extremely important to understand.
{"Image DocumentName": "Electrophysiology I=Vg IV plots are extremely important to understand.", "Image ImageDescription": "They show channel characteristics. They let you see at x voltage the current will be y. MOST IMPORTANTLY: they show size or direction of current that flows at a given voltage. Which properties of the channel are shown in the plot? Reversal potential (+58mV here) \u2013 DETERMINED BY THE CONCENTRATION GRADIENTS OF IONS (NERNST EQUATION, COMING UP NEXT!) Conductance (slope of line) \u2013 conductance is a measure of how many ions a channel CAN PASS \u2013 distinct from how good a channel is at passing current. Therefore conductance depends on the ability of the channel to pass ions and the number of ions available for the channel to pass. This chart on this slide shows either a single channel\u2019s IV plot or a non-voltage gated channel. What would a voltage gated channel\u2019s IV curve look like? (See the next slide!) I=Vg.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}