Chapter 11, Problem 10TYU

Summary Introduction

To propose: A mechanism for the activity of caffeine that accounts for the increase in alertness and sleeplessness.

Introduction: Epinephrine is a hormone secreted by the adrenal glands in response to stress. It reaches to the target cells through the blood and binds to its cell-surface receptors called G-protein coupled receptors. After binding, intracellular signaling cascade begins.