A hormone that promotes gluconeogenesis in the liver is

A) aldosterone.

B) erythropoietin.

C) thymosin.

D) cortisol.

E) parathormone.

The correct answer is: D) cortisol.

Cortisol is a steroid hormone released in response to stress and low blood-glucose concentration. So, its function is to increase blood sugar levels and it does that through gluconeogenesis in liver.

Gluconeogenesis is a metabolic process of glucose production from certain non-carbohydrate carbon substrates such as glucogenic amino acids or glycerol.

Gluconeogenesis is a regulation process that maintains homeostasis by avoiding states with low levels of glucose (hypoglycemia).