BIOLOGICAL BASES OF BEHAVIOR
BIOLOGY OF CONSCIOUSNESS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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produce tolerance to the drug without the associated withdraw effects
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mimic and produce the same effect as a neurotransmitter
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block the neurotransmitter receptor site
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enhance the effects of opiates like heroine
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Detailed explanation-1: -An antagonist is a compound that has the opposite effect of an agonist. It decreases the activation of a synaptic receptor by binding and blocking neurotransmitters from binding or by decreasing the amount of time neurotransmitters are in the synaptic cleft.
Detailed explanation-2: -An antagonist may bind to the same receptor, but does not produce a response, instead it blocks that receptor to a natural agonist. A partial agonist can produce an effect within a cell that is not maximal and then block the receptor to a full agonist.
Detailed explanation-3: -A direct acting antagonist binds to and blocks neurotransmitter receptors, preventing the neurotransmitters themselves from attaching to the receptors. An example of this is the drug Atropine. An indirect antagonist prevents the production or release of neurotransmitters.
Detailed explanation-4: -Antagonist drugs block a chemical response at a neurotransmitter receptor.