Which of the following is true of neurotransmitter function? ...

[NguyenJ]

Which of the following is true of neurotransmitter function?
 
  A) Neurotransmitters diffuse widely across the brain to exert changes in metabolism.
  B) Neurotransmitters directly alter ion channels using a second-messenger chemical.
  C) Neurotransmitters are released into the synapse from the cistaerna.
  D) Neurotransmitters open ion channels in the postsynaptic membrane.
  E) Neurotransmitters alter ion channel activity for minutes.

Question 2

In which portion of a neuron would you expect to find the largest number of vesicles?
 
  A) the dendritic spines
  B) the soma
  C) near the nuclear membrane
  D) the release zone
  E) the axon hillock

[fromAlphatoOmega22]

Answer to Question 1

Answer: D
Rationale: Neurotransmitters open ion channels in the postsynaptic membrane.

Answer to Question 2

Answer: D
Rationale: You would expect to find the largest number of vesicles in the release zone.

[NguyenJ]

Gracias!

[dyrone]

Excellent