A competitive antagonist is a substance that:a.Binds to one receptor subtype as an agonist and to another as an antagonistb.Binds to the same receptor site and progressively inhibits the agonist responsec.Interacts with receptors and produces submaximal effectd.Binds to the nonspecific sites of tissueClear my choice
Question
A competitive antagonist is a substance that:a.Binds to one receptor subtype as an agonist and to another as an antagonistb.Binds to the same receptor site and progressively inhibits the agonist responsec.Interacts with receptors and produces submaximal effectd.Binds to the nonspecific sites of tissueClear my choice
Solution
A competitive antagonist is a substance that binds to the same receptor site and progressively inhibits the agonist response.
Here's a step-by-step explanation:
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A competitive antagonist is a type of drug that competes with the agonist for binding at the receptor site.
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When the competitive antagonist binds to the receptor, it does not activate it to produce a response. Instead, it blocks the receptor and prevents the agonist from activating it.
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The more competitive antagonist present, the more it can bind to the receptors, thereby reducing the effect of the agonist. This is why it progressively inhibits the agonist response.
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The competitive antagonist can be overcome by increasing the concentration of the agonist. This is because both the agonist and antagonist are competing for the same binding site, so if there is more agonist, it is more likely that the agonist will be able to bind to the receptor.
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Therefore, a competitive antagonist is a substance that binds to the same receptor site and progressively inhibits the agonist response.
Similar Questions
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The substance binding to one receptor subtype as an agonist and to another as an antagonist is called:a.Competitive antagonistb.Partial agonistc.Agonist-antagonistd.Irreversible antagonist
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