Which one of the following hormones is modified amino acid?
Which one of the following hormones is modified amino acid?
epinephrine
progesterone
prostaglandin
estrogen.
Solution
Epinephrine is an amino acid derived hormone while progesterone, prostaglandin and estrogen are steroidal hormone.
Related Theory
According to Chemical Nature, hormone are of 5 types:
(a) Steroid Hormones: e.g., Testosterone, Oestrogen, Progesterone etc.
(b) Amine Hormones: e.g., $T_y T_f$ epinephrine, norepinephrine.
(c) Peptide Hormones: e.g., Oxytocin and vasopressin both consist of only 9-amino acid residues only.
(d) Protein Hormones: e.g., Insulin, glucagon, STH etc.
(e) Glycoprotein Hormones: LH, FSH, TSH etc.
(f) Eicosanoids Hormones: (small fatty acid derivatives) e.g., Prostaglandins.