Epinephrine is broken down by the liver into metanephrine and normetanephrine.

Catabolism is the process by which complex molecules are broken down into simpler molecules.

Epinephrine is synthesized in the adrenal glands from the amino acid tyrosine.

Anabolism is the process by which simple molecules are built up into more complex molecules.

Insulin is synthesized in the pancreas from the amino acid proinsulin.

Insulin is the hormone that regulates blood sugar levels.

Thyroxine is synthesized in the thyroid gland from the amino acid tyrosine.

Thyroxine is the hormone that regulates metabolism.

Epinephrine is synthesized in the pituitary gland from the amino acid tyrosine.

Epinephrine is the hormone that regulates growth and development.

Estrogen is synthesized in the ovaries from the steroid hormone cholesterol.

Estrogen is the hormone that regulates the menstrual cycle.

Testosterone is synthesized in the testes from the steroid hormone cholesterol.

Testosterone is the hormone that regulates male sex characteristics.

Human chorionic gonadotropin (hCG) is synthesized in the placenta from the glycoprotein hormone chorionic gonadotropin (CG).