Hormones Questions Set 2

1. Pheochromocytomas are tumours of :

2. Epinephrine is rapidly metabolized by :

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

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

5. Catecholamine hormones are synthesized in the :

6. Melanogenesis is stimulated by :

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

8. Aldosterone release is stimulated by :

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

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

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

12. ADH :

13. Catecholamine hormones are :

14. The plasma level of epinephrine is less than :

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

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

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

18. 3-β-Hydroxysteroid dehydrogenase and
∆5,4 isomerase catalyse the conversion of
the weak androgen DHEA to :

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

20. The most important effect of aldosterone is to :

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

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

23. For Catecholamine biosynthesis the rate
limiting enzyme is :

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

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