Q. I. Insulin II. Epinephrine III. Oestradiol IV. Norepinephrine V. Testosterone VI. Glucagon Which of the above hormones are amino acid derivatives?
A) I and II
B) III and IV
C) V and VI
D) II and IV
Explanation
Biochemical classification of hormones [table] Chemical Nature | Origin | Examples ; 1. Biogenic amines or amino acid derivatives | Derival from tyrosine | Thyroxine, adrenaline, noradrenaline and melatonin ; 2. Proteinaceous or polypeptide | Chains of amino acid | Hypothalamic hormones, ACTH, GH, vasopressin, oxytocin, parathormone, calcitonin, MSH, etc. ; 3. Glycoproteinaceous | Protein + carbohydrates | Thyrotropin, FSH, LH ; 4. Steroid | Derived from cholesterol | Sex hormone and adrenocorticoids [/table]
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.