The mechanism of action of many common medications involves interfering with the normal pathways that cells use to respond to hormone signals. Which of the following best describes a drug interaction that directly interferes with a signal transduction pathway?

The mechanism of action of many common medications involves interfering with the normal pathways that cells use to respond to hormone signals. Which of the following best describes a drug interaction that directly interferes with a signal transduction pathway?


A. A medication interrupts the transcription of ribosomal RNA genes.

B. A medication enters the target cell and inhibits an enzyme that normally synthesizes a second messenger.

C. A medication causes the cell to absorb more of a particular mineral, eventually poisoning the cell.

D. A medication enters the target cell's cytoplasm and acts as a mutagen.



Answer: B


Learn More :