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Produce psychological effects are called

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Reference no: EM133406116

Questions

1. _____ is the inactivation of a neurotransmitter by transporter proteins that bring the transmitter back into the presynaptic axon terminal for reuse.

Diffusion

Enzymatic degradation

Reuptake

Neurochemical recycling

2. In order for neurotransmitters to be released, _____ must enter the synaptic terminal.

Na+

K+

Ca2+

Cl-

3. Drugs that are used to produce psychological effects are called:

psychodepressant drugs.

psychoactive drugs.

mood drugs.

prophylactic drugs.

4. Which of the following is the safest and easiest method of drug administration?

injection into the brain

oral consumption

administration as a suppository

injection into the bloodstream

5. 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

6. 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.

7. Ketamine may generate brain activity and alleviate depression by _______ receptors.

activating serotonin

blocking dopamine

blocking glutamate

activating dopamine

8. 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.

9. _________ opiates are the most potent and responsible for the large increases in opioid overdose deaths.

Altered

Synthetic

Isolated

Endogenous

10. Very small doses (microdoses) of LSD appear to exert its effects through its interactions with receptors for the neurotransmitter:

GABA

serotonin

dopamine

glutamate

11. Cocaine ________ and is thus considered to be an __________.

inhibits dopamine release; antagonist

blocks dopamine reuptake; agonist

stimulates dopamine release; agonist

blocks dopamine reuptake; antagonist

12. Heavy smokers have fewer nicotine receptors in their brains. This finding is an example of:

cross-sensitization

sensitization

neurotransmitter re-uptake

cellular tolerance

13. 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.

14. 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

15. 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

Reference no: EM133406116

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