Question

What are hormones? Give an example for each of the following:
(a) Steroid hormones
(b) Polypeptide hormones
(c) Amino acid derivatives

Answer 1

Hormones are secretions of endocrine glands (ductless glands). Hormones are biomolecules and carried directly into different parts by the blood stream.
(a) Steroid hormones: estrogens, progesterone and androgens.
(b) Polypeptide hormones: Insulin.
(c) Amino acid derivatives: Adrenaline and nor adrenaline