You are studying a cell's response to a signal.After the cellular receptor binds the signal (ligand), you measure several responses.A transcription factor in one signal transduction pathway is inhibited, and an enzyme in a different signal transduction pathway is activated.This is an example of
A) signal transduction.
B) signal amplification.
C) crosstalk.
D) G protein signaling.
E) inactivation.

Question

Quizplus · Accepted Answer

This is an example of crosstalk, where the signal transduction pathways intersect and affect each other's responses. The inhibition of one transcription factor in one pathway and the activation of an enzyme in another pathway are two distinct responses that are affected by the same signal (ligand). This demonstrates how multiple pathways can be activated by a single signal and how they can interact with each other to modulate cell responses.

You Are Studying a Cell's Response to a Signal