What is Amino acid hormone?

Amino acid hormones are a class of hormones derived from amino acids, which are the building blocks of proteins. These hormones include catecholamines (like epinephrine and norepinephrine) and thyroid hormones (like thyroxine), which play critical roles in regulating various physiological processes such as metabolism, stress response, and growth. Unlike steroid hormones, amino acid hormones typically act more quickly and often bind to receptors on cell surfaces to exert their effects.