B150W06FINALkey0

B150W06FINALkey0 - BICD 150 Endocrinology Winter, 2006...

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BICD 150 Endocrinology Final Exam Key Page 1 Winter, 2006 March 21, 2006 Please select the single best answer. 1. Which hormone binds to an intracellular receptor? A. epinephrine B. dopamine C. glucagon D. aldosterone E. IGF-1 2. Which of the following is NOT a mechanism to turn off Gs signaling? A. ↑ Protein phosphatase activity B. ↑ Protein Kinase A activity C. ↑ phosphodiesterase activity D. ↑ receptor phosphorylation by βARK E. ↑ GTPase activity of Gα subunit 3. What type of receptor undergoes autophosphorylation upon hormone binding? A. serpentine (7 transmembrane) B. cytokine C. intracellular D. guanylyl cyclase-linked E. growth factor 4. Which of the following is a C-19 steroid? A. cortisol B. pregnenolone C. progesterone D. testosterone E. aldosterone 5. All of the following are derived from arachidonic acid EXCEPT: A. leukotrienes B. thromboxanes C. diacylglycerols D. prostacyclins E. prostaglandins 6. Which of the following is(are) effect(s) of prostaglandins? A. platelet aggregation B. stomach mucus production C. inflammation D. pain E. all of the above 7. Of the choices listed above, which one is not affected by COX-2 inhibitors? B 8. What type of anterior pituitary cells are primarily regulated by dopamine inhibition? A. lactotrophs B. corticotrophs C. gonadotrophs D. somatotrophs E. thyrotrophs
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BICD 150 Endocrinology Final Exam Key Page 2 Winter, 2006 March 21, 2006 Please select the single best answer. 9. A parent is concerned that their son is not growing as quickly as other children his age. If his growth hormone levels are normal, what could be the cause of his slow growth? A. increased GHRH B. increased dopamine C. non-functional IGF-1 receptors D. decreased somatostatin E. pituitary tumor of the somatotrophs 10. When ADH binds to its receptor, all of the following occur EXCEPT: A. increase in cAMP B. increase in exocytosis of aquaporins C. increased urine osmolarity D. decrease in water entering renal capillaries E. increase in PKA and protein phosphorylation 11. All of the following can stimulate oxytocin secretion EXCEPT: A. stretch of the cervix B. mechanical stimulation of the breasts C. a lactating mother hears a baby crying D. contraction of uterus during labor E. none of the above 12. Which of the following are located in the colloid of the thyroid gland? A. vesicles with thyroglobulin B. lysosomes C. 3,5-diiodotyrosine D. Na + /I - transporters E. TSH receptors 13. A patient comes to you with hypothyroidism. Which of the following would you expect to observe? A. slow reflexes B. myxedema C. sensitivity to cold D. all of the above E. none of the above 14. A patient comes to you with Graves disease. Which of the following do you expect to observe? A. slow reflexes
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This note was uploaded on 04/06/2012 for the course BICD 150 taught by Professor Fortes during the Winter '09 term at UCSD.

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B150W06FINALkey0 - BICD 150 Endocrinology Winter, 2006...

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