Hormones Questions Set 2

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

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

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

4. For Catecholamine biosynthesis the rate
limiting enzyme is :

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

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

7. The plasma level of epinephrine is less than :

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

9. Epinephrine is rapidly metabolized by :

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

11. ADH :

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

13. Melanogenesis is stimulated by :

14. Catecholamine hormones are :

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

16. The most important effect of aldosterone is to :

17. Aldosterone release is stimulated by :

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

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

20. Catecholamine hormones are synthesized in the :

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

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

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

24. Pheochromocytomas are tumours of :

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