Which of the following represents a problem for the hypothesis ...

[mmm]

Which of the following represents a problem for the hypothesis that amino acids can function as neurotransmitters?
 
  A) Amino acids can be released from nerve terminals.
  B) EPSPs and IPSPs are produced by application of amino acids onto neurons.
  C) Amino acids are localized within neurons.
  D) Amino acids play a role in protein synthesis for all nerve cells.
  E) None of the above are correct.

Question 2

Which of the following neurochemical effects may contribute to the capacity of ecstasy (MDMA) to produce hallucinogenic effects in users?
 
  A) MDMA blocks norepinephrine reuptake and causes norepinephrine transporters to run in reverse.
  B) MDMA blocks dopamine receptors.
  C) MDMA destroys brain GABA neurons.
  D) MDMA blocks serotonin reuptake and causes serotonin transporters to run in reverse.
  E) MDMA activates glutamate receptors.

[blakcmamba]

Answer to Question 1

Answer: D
Rationale: The fact that amino acids play a role in protein synthesis for all nerve cells is a problem for the hypothesis that amino acids can function as neurotransmitters.

Answer to Question 2

Answer: D
Rationale: The ability of ecstasy (MDMA) to block serotonin reuptake and cause serotonin transporters to run in reverse may contribute to the capacity of MDMA to produce hallucinogenic effects in users.

[mmm]

TYSM

[amcvicar]

Excellent