True or false? norepinephrine and epinephrine receptors are separated into the categories of alpha and beta.

Answer;

The above statement is true

Norepinephrine and epinephrine receptors are separated into the categories of alpha and beta.

Explanation;

-The adrenergic receptors are a class of G protein-coupled receptors that are targets of many catecholamines like norepinephrine and epinephrine produced by the body.The types adrenergic receptors are alpha, beta 1 and beta 2.

-Epinephrine and norepinephrine are released by the adrenal medulla and nervous system respectively. They are the flight/fight hormones that are released when the body is under extreme stress. During stress, much of the body's energy is used to combat imminent danger.

The answer is true.

The adrenergic receptors or adrenoceptors are a class of G protein-coupled receptors and those are receptors for catecholamines like norepinephrine (noradrenaline) and epinephrine (adrenaline). The signal pathways are different among different subtypes of adrenergic receptors. α1 couples to Gq, which results in increased intracellular Ca2+ (smooth muscle contraction), α2, couples to Gi, which causes a decrease in neurotransmitter release, as well as a decrease of cAMP activity, β receptors couple to Gs, and increases intracellular cAMP activity, ( heart muscle contraction, smooth muscle relaxation and glycogenolysis).