ACTION POTENTIAL (AP) ON A NEURON
1. For each of the following channels, indicate what
specifically opens...
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ACTION POTENTIAL (AP) ON A NEURON
1. For each of the following channels, indicate whatspecifically opens it, what specifically closes it, and what goesthrough (& in what direction) when it is open.
•Voltage-gated Na+ channel
•Voltage-gated K+ channel
2. What are leak channels? What purpose do they serve inneurons?
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Ans 1 Voltage gated channels Na channel Voltage Gated Sodium channels Na VGC are found within the plasma membrane of nerve cell axons Their main role is to induce an action potential AP The Na VGC can occupy 3 states Open inactive and closed There are 2 gates in Na VGC unlike K VGC which only has 1 There is the activation gate and inactivation gate The activation gate is voltage dependent and the inactivation gate is time dependent Open When the plasma membrane begins to depolarize it triggers the
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