When the kinetic energy of an ion is larger than the potential difference across the membrane and the associated channels are open, what will likely happen?
A. The ion cannot pass through the membrane.
B. The ion pass through the membrane.
C. The ion is stuck in the ion channel.
D. None of above.
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In case of multiple types of ions, the equilibrium potential of the membrane can be described by 6. (Part 03. easy) 105-W1
A. the Nernst equation.
B. the Goldman equation.
C. the Boltzmann equation.
D. the Newton’s law
In the leaky integrate-and-fire model, the leaky term −gL(V−EL) describes *8. (Part 04, medium) 105-W1
A. the external current input.
B. the action potential.
C. the activation probability of the sodium channels.
D. the current passing through the membrane.
How does the leaky integrate-and-fire model respond to a small current injection? 11. (Part 04, easy) 105-W1
A. The membrane potential approaches to a new resting state determined by the injecting current.
B. The neuron always fires.
C. The membrane potential does not change.
D. The firing threshold changes to a new level determined by the injecting current.
To study the initiation of action potential, we can simplifying the Hodgkin-Huxley model into a one-dimensional system based on all but which of the following assumptions? 43. (Part 15, medium)105-W5
A. The potassium channel is neglect because of its slow dynamics.
B. The inactivation gate of the sodium channel is neglect because of its slow dynamics.
C. The membrane leak current is removed because it is too fast.
D. The activation gate of the sodium current is replaced by its asymptotic value because it is extremely fast.
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