Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water. Cellular respiration refers to the metabolic reactions and processes which occur in the cells of organisms. Its products include carbon dioxide, water and energy stored as energy-rich ATP.
Epinephrine and the heart. Epinephrine binds to beta-adrenergic receptors on heart muscle cells. This causes the contraction rate of the heart to increase. This ultimately leads to increased blood supply to the tissues in the body.pinephrine, along with another hormone called glucagon, is responsible for the breakdown of glycogen in liver cells. Glycogen is a form of energy storage in animals. Epinephrine binds to a receptor on the outside of a liver cell causing a conformational change to occur. This change means that a G protein can now bind.
The adrenergic receptors are a class of G protein-coupled receptors that are targets of the catecholamines, especially norepinephrine and epinephrine. Many cells possess these receptors, and the binding of a catecholamine to the receptor will generally stimulate the sympathetic nervous system. The sympathetic nervous system is responsible for the fight-or-flight response, which includes dilating the pupil, increasing heart rate, mobilizing energy, and diverting blood flow from non-essential orga