Hormones Questions Set 2

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

2. Catecholamine hormones are :

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

4. Pheochromocytomas are tumours of :

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

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

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

8. Epinephrine is rapidly metabolized by :

9. Melanogenesis is stimulated by :

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

11. Aldosterone release is stimulated by :

12. ADH :

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

14. 3-β-Hydroxysteroid dehydrogenase and
∆5,4 isomerase catalyse the conversion of
the weak androgen DHEA to :

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

16. For Catecholamine biosynthesis the rate
limiting enzyme is :

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

18. Catecholamine hormones are synthesized in the :

19. The plasma level of epinephrine is less than :

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

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

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

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

24. The most important effect of aldosterone is to :

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