Chapter 4.5, Problem 4CYU

Summary Introduction

To explain:

The difference between protein kinase and protein phosphatases.

Introduction:

The most common way by which cell communication takes place is through extracellular chemical messengers or signals, which are of four types namely paracrines, neurotransmitters, hormones and neurohormones. In each case, the signal molecule, a particular chemical messenger, is synthesized to a designated purpose using specialized control cells.