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Questions and Answers
Which drug is an example of a β receptor agonist?
Which drug is an example of a β receptor agonist?
- Hydrocodone
- Adrenaline
- Salbutamol (correct)
- Antagonist
What is the primary function of an agonist in pharmacology?
What is the primary function of an agonist in pharmacology?
- To increase receptor affinity without a response
- To block receptor activity
- To produce a physiological effect similar to a natural signal (correct)
- To reduce the efficacy of physiological signals
Which of the following is true about agonists?
Which of the following is true about agonists?
- Agonists bind to receptors and do not form a complex
- Agonists exhibit both full affinity and full efficacy (correct)
- Agonists only activate receptors at a high concentration
- Agonists have full affinity but no efficacy
What happens when an agonist binds to a receptor?
What happens when an agonist binds to a receptor?
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Which of the following statements about adrenaline is correct?
Which of the following statements about adrenaline is correct?
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Study Notes
Agonist
- An agonist is a drug that binds to a receptor and produces a pharmacological effect or cellular response similar to a physiological signal.
- The agonist binds to the receptor to form a complex, denoted as D + R → DR (complex), which then triggers the desired effects.
- Agonists possess full affinity to the receptor and full efficacy in producing the desired response.
- Examples of agonists include:
- Salbutamol, which acts as a β receptor agonist
- Adrenaline, which acts as both an α and β receptor agonist
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Description
This quiz covers the concept of agonists in pharmacology, detailing how these drugs bind to receptors to produce physiological effects. Explore key examples like Salbutamol and Adrenaline and understand their roles as receptor agonists. Test your knowledge on drug-receptor interactions and their impact on cellular responses.
