Ahormone 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).

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products