Question 2 (1 point) The potassium current is an inward current One of the equat

Question

Question 2 (1 point) The potassium current is an inward current One of the equations in the Hodgkin-Huxley model is a version of Kirchoff's voltage law All else being equal, the rate of change of the fraction of m gates that are open will increase when there are more closed gates The n gate opens substantially faster in response to a voltage step than the m gate. The rate of opening of dosed h gates increases with increasing voltage An ion channel is open if any one of the gates in the channe is open The opening of m gates is partially responsible for the repolarization stage of the action potential All else being equal, the rate of change of the fraction of n gates that are open will increase when the rate at which open gates close increases.

Explanation / Answer

1.An inward current corresponds to a positively charged ion Na+ entering the cell. An outward current corresponds to a positively charged ion such as K+ leaving the cell or a negatively charged ion such as Cl- entering the cell.So the first statement is false

2.The first ingredient in the Hodgkin-Huxley model is simply kirchoff's law stating that Cdv/dt is given by the sum of currents flowing through the memebrane channels.

3. the statement is true.

4.The statement is false.

5. The statement is false.The more the positive voltage the h gate closes again

6.The statement is true, when the gate is open the ions flow through the channel.

7.The statement is false, the opening of m gates is responsible for depolarisation stage of the action potential.

8. the stetement is true

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