Chapter 6, Problem 11CC

(a)

Summary Introduction

To determine: The correct sequence of given molecules: cell response, receptor, second messenger, and a ligand for a signal transduction pathway.

Introduction: A cell can respond to a particular chemical signal only if a cell has an appropriate receptor protein. The receptor protein combines with the signal protein. The binding of a receptor and signal molecule initiates a response.

(b)

Summary Introduction

To determine: The correct sequence of given molecules: amplifier enzyme, cell response, phosphorylated protein, protein kinase, and second messenger for a signal transduction pathway.

Introduction: The signal transduction pathway is the basic pattern followed by the signal molecule to create a response. The pathway includes the extracellular and intracellular events.