Reference no: EM133406128
Questions
1. Amphetamine abusers demonstrate progressively more psychotic symptoms with repeated use (ever see the show Breaking Bad?). This effect of amphetamines demonstrates:
cross-tolerance
withdrawal
tolerance
sensitization
2. When acetylcholine and curare are both present at a synapse, curare is what tends to bind to the receptor. We would state that curare:
displayed a lower level of tolerance.
has greater efficacy of action.
has a higher affinity for the receptor.
is an agonist.
3. Ketamine may generate brain activity and alleviate depression by _______ receptors.
activating serotonin
blocking dopamine
blocking glutamate
activating dopamine
4. Botulin toxin (botulism) causes paralysis and slowed breathing by preventing neurotransmitter release, and is therefore a(n):
dopamine agonist.
acetylcholine antagonist.
dopamine antagonist.
acetylcholine agonist.
5. _________ opiates are the most potent and responsible for the large increases in opioid overdose deaths.
Altered
Synthetic
Isolated
Endogenous
6. Very small doses (microdoses) of LSD appear to exert its effects through its interactions with receptors for the neurotransmitter:
GABA
serotonin
dopamine
glutamate
7. Cocaine ________ and is thus considered to be an __________.
inhibits dopamine release; antagonist
blocks dopamine reuptake; agonist
stimulates dopamine release; agonist
blocks dopamine reuptake; antagonist
8. Heavy smokers have fewer nicotine receptors in their brains. This finding is an example of:
cross-sensitization
sensitization
neurotransmitter re-uptake
cellular tolerance
9. Why do valium and alcohol enhance each others actions?
Valium causes the release of neurotransmitters that work synergistically with alcohol.
Alcohol causes the release of neurotransmitters that work synergistically with valium.
Valium increases the number of receptors that alcohol inhibits.
They both act in a similar way on the same receptor type.
10. Which of the following drugs may be used to treat depression?
serotonin selective reuptake inhibitors
All of the answers are correct.
glutamate antagonists
serotonin receptor agonists
11. The development of _____ can explain why a person experienced with alcohol may not become intoxicated despite having consumed a number of alcoholic beverages.
synaptic fatigue
metabolic tolerance
adaptation
sensitization