Hormones Questions Set 2

1. Melanogenesis is stimulated by :

2. The number of amino acids in antidiuretic hormone is :

3. ADH :

4. One of the potent stimulators of aldosterone secretion is :

5. Aldosterone release is stimulated by :

6. The hormone required for uterine muscle
contraction for child birth is :

7. The number of amino acids in the hormone oxytocin is  :

8. Catecholamine hormones are synthesized in the :

9. For Catecholamine biosynthesis the rate
limiting enzyme is :

10. In the biosynthesis of cortiols, the sequence of enzymes involved is :

11. Epinephrine is rapidly metabolized by :

12. Catecholamine hormones are :

13. An increase in the osmolality of extracellular compartment will :

14. The sequential steps in the conversion of
tyrosine to epinephrine are :

15. Pheochromocytomas are tumours of :

16. The plasma level of epinephrine is less than :

17. Vasopressin and oxytocin circulate unbound to proteins and have very short
plasma half lives, on the order of :

18. In the resting state plasma concentration of cortisol is :

19. 3-β-Hydroxysteroid dehydrogenase and
∆5,4 isomerase catalyse the conversion of
the weak androgen DHEA to :

20. The defect in adrenal cortex responsible
for lack of glucocorticoids and mineralcorticoids is :

21. A hormone which cannot cross the blood brain barrier is :

22. Increased reabsorption of water from the
kidney is the major consequence of the
secretion of the hormone :

23. The most important effect of aldosterone is to :

24. In the rennin-angiotensin system the
primary hormone is :

25. In the synthesis of Angiotensin I, rennin
acts on Angiotensinogen and cleaves the :