When a Drug Binds to a Receptor Site,all Except Which

question 19

Multiple Choice

When a drug binds to a receptor site,all except which of the following can occur?

• A)An ion channel can be opened or closed.
• B)Biochemical messengers that initiate chemical reactions can be activated.
• C)A normal cellular function can be turned on or off.
• D)The therapeutic response produced is directly proportional to the number of sites occupied.

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Definitions:

Sternum

A long flat bone located in the center of the chest, which connects to the ribs via cartilage to form the front part of the rib cage.

Deep

Positioned far away from the surface of the body or from the point of reference.

Negative Feedback

A control system where a trigger leads to a contrary outcome to keep a regulated factor at its optimal state.