Question 6 0 1 point After depolarization and action potential propagation, what

Question

Question 6 0 1 point After depolarization and action potential propagation, what must occur to the membrane returning it to resting state? Gated K+ ion channels must close. Gated Na+ ion channels must opern Gated K+ ion channels must open. K+ ions leak out of the cell. Question 7 0/1 point Depending on the neurotransmitter and its receptor type, which of the following should result from hyperpolarization? Inhibitory post-synaptic potential Inhibitory nerve transmission. Negative depolarization state Excitatory post-synaptic potential.

Explanation / Answer

Ans 6. Gated k+ channels open

Just after depolarisation of membrane voltage dependent k+ channels open and Na+ channels closes. So, potassium efflux increase and membrane potential tends to approach k+ equilibrium potential. This leads to re establishment of negative resting membrane potential.

Ans 7. Inhibitory postsynaptic potential.

It is post synaptic memrane which determine the effect of neurotransmitter substance whether they are excitatory or inhibitory. The receptor molecoules determine which ion are to enter the post synaptic neuron, in turn determine the change in postsynaptic potential.

Hyperpolarisation increase action potentials by increasing the stimulus required to move the membrane potential to action potential threshold.

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.