Hormones Questions Set 2

1. The most important effect of aldosterone is to :

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

3. Pheochromocytomas are tumours of :

4. Melanogenesis is stimulated by :

5. Aldosterone release is stimulated by :

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

7. Catecholamine hormones are :

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

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

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

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

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

13. Catecholamine hormones are synthesized in the :

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

15. ADH :

16. For Catecholamine biosynthesis the rate
limiting enzyme is :

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

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

19. The plasma level of epinephrine is less than :

20. Epinephrine is rapidly metabolized by :

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

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

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

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

25. 3-β-Hydroxysteroid dehydrogenase and
∆5,4 isomerase catalyse the conversion of
the weak androgen DHEA to :