Chapter 8.3, Problem 1TYK

Summary Introduction

Introduction:

Receptors can bind only with their specific molecules. So, message molecules fit together with their receptors like a key in a lock. The importance of this linkage is that only those cells would respond to the signals that have the receptors for message molecules. The appropriate binding of the message molecule and receptors would initiate a chain of reactions in specific target cells that helps the cell to respond to the message.