17042286
Descrição
Quiz por Catriona Wilds, atualizado more than 1 year ago
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Criado por Catriona Wilds
mais de 5 anos atrás
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Questão 1
Questão
The primary excitatory neurotransmitter is ______, and ______ is the primary inhibitory neurotransmitter.
Responda
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GABA, Glutamate
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Glutamate, GABA
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Dopamine, Serotonin
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Adrenaline, Opiate
Questão 2
Questão
An agonist is a drug that...
Responda
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Is always less potent than an antagonist
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Elicits a similar physiological response to that of a neurotransmitter
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Will usually have depressant effects
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All of the above
Questão 3
Questão
The anti-depression drug Fluoxetine (also known as Prozac) increases level of serotonin. It does this by...
Responda
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increasing serotonin production
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inhibiting serotonin deterioration
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indirect stimulation of serotonic cells
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blocking the reuptake of synaptic serotonin
Questão 4
Questão
An increase in _____ for a drug would cause that drug to more rapidly reach the brain.
Responda
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Metabolism of the drug via the liver
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Lipid solubility
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Water solubility
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Kidney excretion
Questão 5
Questão
One mechanism for the tolerance produced by repeated drug administration is...
Responda
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A decreased metabolism of the drug
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An increased plasma level of the drug
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An increased number of receptors for the drug
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A reduced number of receptors for the drug
Questão 6
Questão
Caffeine acts to...
Responda
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Block adenosine receptors
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Stimulate adenosine receptors
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Block noradrenaline receptors
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Block acetylcholine receptors
Questão 7
Questão
The psychoactive constituent of the drug cannabis (THC) probably acts on the same receptors as...
Responda
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Adenosine
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Anandamide
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Adenylate cyclase
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Arachidonic cannabinol
Questão 8
Questão
Naloxone would be effective at reversing the effects of...
Responda
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Dextro-amphetamine
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LSD
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Morphine
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Both LSD and Morphine
Questão 9
Questão
Repeated administration of barbiturates/opiates may cause no increase in level of sedation/pain relief but an increasing effect on respiratory depression. Why might this be?
Responda
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The drug begins to act as a placebo
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The drug has an increased margin of safety over time
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The drug has more than one site of action
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The drug binds with an ionotropic receptor
Questão 10
Questão
Drugs that are postsynaptic receptor antagonists...
Responda
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Increase neural inhibition only
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Reduce neural inhibition only
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Increase or reduce neural inhibition depending on the typical action of the neurotransmitter
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Increase neural inhibition only when bound to a metabotropic receptor
Questão 11
Questão
A drug which prevents the storage of a neurotransmitter within synaptic vesicles would be...
Responda
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An agonist
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An antagonist
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Either an agonist or an antagonist
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An agonist only when calcium channels are open
Questão 12
Questão
If a drug blocks pre-synaptic transporter reuptake molecules, then it is...
Responda
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An agonist
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An antagonist
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Either an agonist or an antagonist
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An agonist only when sodium channels are open
Questão 13
Questão
Repeated stimulation of the mesolimbic system can lead to drug abuse. This is because...
Responda
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This system projects to the prefrontal cortex
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This system is important for reinforcement
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This is an important part of the basal ganglia
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This system is important in the control of the mood
Questão 14
Questão
GABA receptors are complex, but it is known that alcohol will act as...
Responda
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An agonist to these receptors
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An antagonist to these receptors
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Either an agonist or an antagonist to these receptors
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An agonist but only if steroid molecules are also bound to the receptor
Questão 15
Questão
Why might terahydrocannabinol (THC), the active ingredient in marijuana) be used by people taking certain drugs for cancer?
Responda
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It reduces anxiety produced by cancer drugs
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It acts as an antagonist for the neurotransmitter anandamide
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It reduces nausea produced by cancer drugs
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All of the above
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