Glucose to ATP is the answer.
The circulatory system brings nourishment to all cells of the body. The circulatory system exchanges critical gases with the respiratory system; unneeded carbon dioxide is exchanged for much needed oxygen. The respiratory system provides oxygen so the body can "burn" (oxidize) the food that is brought into the body through the digestive system<span>.</span>
The correct answers are gluconeogenesis and glycogenolysis.
Glucose is the prime energy source, which is utilized by the body. Glucagon refers to the peptide hormone, which enhances the levels of glucose in the body when its amount is critically low in the blood.
The upsurge in the number of glucose levels in the bloodstream is encouraged by the processes, gluconeogenesis, and glycogenolysis. Gluconeogenesis refers to the metabolic pathway, which generates glucose molecules, this generally occurs in the liver.
Glycogenolysis refers to the biochemical dissociation of glycogen molecules to glucose. It takes place in the liver tissues.