This biochemistry assignment provides an overview of the mechanisms of action for several key hormones. It details the processes by which insulin, growth hormone, adrenaline, cortisol, thyroxin, and glucagon exert their effects on the body. The assignment explains how insulin regulates carbohydrate and fat metabolism by binding to insulin receptors and stimulating various metabolic processes. It discusses how growth hormone influences glucose production and uptake, and how adrenaline increases plasma glucose levels. The assignment further explores how cortisol increases glucose levels through protein and lipid breakdown, and how thyroxin facilitates glucose production and induces hepatic insulin resistance. Finally, it explains how glucagon stimulates the liver to release glucose into the bloodstream. References are provided for each hormone's mechanism of action.