Question

question 10
1 point
an agonist is a drug that:
○ binds to a receptor and activates it
○ binds to a receptor but does not activate it
○ binds to an enzyme and inhibits its activity
○ prevents the binding of other drugs to a receptor

question 11
1 point
a dose - response curve illustrates the relationship between
○ drug concentration and time
○ drug absorption and time
○ drug efficacy and safety
○ drug dose and its effect

Explanation:

• For Question 10: By definition, an agonist is a substance that binds to a specific receptor and triggers a biological response by activating that receptor. The other options describe antagonists (bind but don't activate, block others) or enzyme inhibitors, not agonists.
• For Question 11: A dose-response curve is a standard pharmacological tool that plots the amount (dose) of a drug against the magnitude of the biological effect it produces, directly showing this relationship. The other options describe different types of pharmacological plots (e.g., concentration vs time is a pharmacokinetic curve).

Answer:

1. Question 10: Binds to a receptor and activates it
2. Question 11: Drug dose and its effect