Final answer:
The statement that adrenaline reduces lipolysis and hepatic gluconeogenesis is false. Adrenaline actually stimulates lipolysis, leading to an increase in the substrates necessary for gluconeogenesis and thereby assisting in the maintenance of blood glucose levels.
Step-by-step explanation:
The student's question asserts that adrenaline reduces lipolysis in adipose tissues and, therefore, hepatic gluconeogenesis. This statement is False. Adrenaline, in fact, stimulates lipolysis, the breakdown of fats stored in adipose tissue, resulting in the release of glycerol and free fatty acids into the bloodstream. This process increases the availability of substrates for hepatic gluconeogenesis, which is the production of glucose by the liver, especially during times when glucose levels need to be increased to meet the body's energy demands.
Lipolysis is crucial for mobilizing stored energy sources, and hormones like adrenaline, noradrenaline, and growth hormone (GH) promote this process. Growth hormone also induces lipolysis and leads to a glucose-sparing effect as many tissues switch to fatty acids as their main energy source, meaning less glucose is used for energy and more remains available in the bloodstream.