To respond to a signal, a cell must have a(n) _______ molecule that can detect the signal.
A) paracrine
B) receptor
C) autocrine
D) response
E) recognition

Question

Quizplus · Accepted Answer

A receptor molecule is necessary for a cell to detect a signal. Receptors are specific molecules that bind to signaling molecules and initiate a response within the cell. Paracrine and autocrine molecules are types of signaling molecules themselves, while response and recognition molecules are not directly involved in signal detection.

To Respond to a Signal, a Cell Must Have A(n)