exam_2_08_A_1 - PSL 432 Exam 2 Friday, March 21, 2008...

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PSL 432 Exam 2 Friday, March 21, 2008 Name:_______________________________ 1. Which of the following hormones is secreted from adipocytes? A. Insulin-like growth factor 1 (IGF-1) B. Leptin@ C. Growth hormone D. Gherlin E. Cholecystokinin 2. A hypothetical drug called T-RXN inhibits the conversion of thyroxine (T4) to triiodothyronine (T3). Treatment of a human subject with T-RXN would cause which of the following effects? A. Increased synthesis of thyroglobulin by follicular cells. B. Decreased secretion of thyrotropin releasing hormone (TRH). C. Hypertrophy and hyperplasia of the thyroid gland. D. Decreased secretion of thyroxine (T4) E. Both ‘A’ and ‘C’ are correct.@ 3. Which of the following enzymes is required for the synthesis of cortisol? A. Tyrosine hydroxylase B. 17 α -hydroxylase@ C. Phenylethanolamine N-methyl transferase D. iodine peroxidase E. Both ‘A’ and ‘C’ are correct. 4. Vasopressin A. secretion is stimulated by increased blood volume. B. binds to vasopressin 2 receptors in the kidney and blocks water reabsorption. C. has the same primary structure as oxytocin. D. is the only hormone that regulates whole body water balance. E. increases the number of aquaporin proteins in apical membranes of collecting duct cells.@ 5. Epinephrine secretion from the adrenal gland is stimulated by A. acetylcholine released from pre-ganglionic sympathetic nerves.@ B. adrenaline-releasing hormone (ARH) released from anterior pituitary glandular cells. C. norepinephrine released from post-ganglionic sympathetic nerves. D. acetylcholine released from post-ganglionic parasympathetic nerves. E. dopamine released from adrenal medulla cells. 6. During the absorptive state, insulin A. inhibits glycogen formation in the liver. B. stimulates ketogenesis in the liver. C. inhibits lipolysis in the adipose.@ D. stimulates gluconeogenesis in the liver. E. inhibits protein synthesis in muscle and other tissues.
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PSL 432 Exam 2 Friday, March 21, 2008 Form A 7. Oxytocin A. is not present in males. B. stimulates contraction of mammary myoepithelial cells.@ C. is released from anterior pituitary lactotrophs. D. stimulates milk synthesis in the breast. E. All of the above are correct. 8. Which of the following hormones require a transport protein to serve as a carrier in the blood? A. Insulin B. Growth hormone C. Oxytocin D. Thyroxine (T4)@ E. All of the above are correct. 9. Which of the following hormones is responsible for setting the basal metabolic rate and for promoting maturation of the brain? A. Cortisol B. Triiodothyronine (T3)@ C. ACTH D. Epinephrine E. Growth hormone 10. Which of the following hormones signal through a nuclear receptor? A. Vasopressin B. ACTH C. Growth hormone releasing hormone D. Cortisol@ E. Insulin 11. Parathyroid hormone increases blood Ca 2+ levels by A. increasing 1 α -hydroxylase activity in kidney.@ B. stimulating osteoblast activity. C.
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This note was uploaded on 04/03/2008 for the course PSL 432 taught by Professor Several during the Spring '08 term at Michigan State University.

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exam_2_08_A_1 - PSL 432 Exam 2 Friday, March 21, 2008...

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