Monday, July 16, 2012

All these are functions of Growth Hormone (GH) except (plz help me answer this


All these are functions of Growth Hormone (GH) except (plz help me answer this)?
All these are functions of Growth Hormone (GH) except A. Stimulates uptake of amino acids and conversion into proteins B. Stimulates breakdown of fats and glycogen C. Promotes bone and cartilage growth D. Increased secretion in response to increase amino acids, low blood glucose, or sffess E. Stimulates cortisol secretion from adrenal cortex These hormones regulate production of gametes and reproductive hormones A. Gromh hormone and ACTH B. Prolactin and FSH C. ACTH and MSH D. LH and FSH Growth factors are local regulators that A. Produced by anterior pituitary B. Are modif,red fatty acid that stimulate bone and cartilages C. Are found on the surface of cancer cell and stimulate abnormal cell growth D. Are protein that bind to ceil surface receptor and stimulate target cell growth and deveiopment Which is not a form of communication by cells? A. Endocrine. B. Neural. C. Autocrine. D. Musculine Which of the following hormones is secreted by the leydig cell? A. Thyroxin B. Androgen C. Giucocorticoid D. Prigesterone Every hormone A. Is a protein. B. Is produced in response to stress. C. Is under the conhol of the pituitary gland. D. Enters a cell and interacts with DNA. E. Acts as a signal between cells. Which of the following hormones have antagonistic (opposing) effects? A. Thyroxin and calcitonin B. Insulin and glucagon C. Growth hormone and epinephrine D. ACTH and glucocorticoids E. Epinephrine and norepinephrine Jet lag occurs when a person moves rapidly from one time zone to another, causing conflict between the body's biological rhythms and the new cycle of light and dark. Some scientists suspect that jet lagmay result from disruption of a daily hormone cycle. Which of the following hormones do you think is the most likely suspect? A. Epinephrine B. Insulin C. Melatonin D. Estrogen. E. Prolactin Diabetes insipidus is an inherited endocrine malfunction (unrelated to diabetes mellitus) in which the kidneys fail to reabsorb normal amounts of water. Victims of this disease produce gallons of urine each day, and their kidneys soon wear out. Treatment of this disease involves replacing a missing hormone. Which of the following do you think it is? a. Glucagon b. Epinephrine C. Glucocorticoids D. Antidiuretic Hormone (ADH) E. Thyroid-Stimulating Hormone (TSH) Because only the gland uses iodine to make its hormones, radioactive iodine is often used as a treatment for tumors of this gland. A. Pituitary B. Pancreatic C. Thyroid D. Adrenal E. Testicular Because only the gland uses iodine to make its hormones. radioactive iodine is often used as a treatment for tumors of this gland. a. Pituitary b. Pancreatic c. Thyroid d. Adrenal e. Testicular
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1) E. Stimulates cortisol secretion from adrenal cortex This is not a function of GH. Cortisol secretion is stimulated by ACTH (adrenocorticotropic hormone), which is secreted from the anterior pituitary galnd. 2) D. LH and FSH LH (luteinizing hormone) promotes the secretion of sex hormones in both males and females. In males, FSH (follicle stimulating hormone) stimulates the production of sperm cells in the testes. In females, FSH is responsible for the growth and development of follicles that house egg cells in the ovaries. 3) D. Are proteins that bind to cell surface receptors and stimulate target cell growth and development 4) D. Musculine 5) B. Androgen Cells of Leydig (also called interstitial cells) are located within the testes, and are responsible for the production of androgens (male sex hormones). 6) E. Acts as a signal between cells. 7) B. Insulin and glucagon When blood glucose levels are elevated, the pancreas secretes insulin. Insulin stimulates the synthesis of glycogen from glucose monomers, thus decreasing blood glucose levels. When blood glucose levels have declined, the pancreas secretes glucaon. Glucagon stimulates the catabolism of glycogen into glucose monomers, increasing blood glucose levels. Glucagon also stimulates the synthesis of glucose from noncarbohydrate substances (gluconeogenesis). Hence, insulin and glucagon have opposite effects. 8) C. Melatonin The pineal gland secretes the hormone melatonin, which is synthesized from serotonin. Melatonin plays an important role in the regulation of circadian rhythmns, which are patterns of repeated activity associated with cycles of day and night. 9) D. Antidiuretic Hormone (ADH) ADH is a hormone secreted from the anterior pituitary gland. It functions in stimulating the kidneys to conserve water. Hence, ADH plays an important role in regulating the concentration of body fluids. 10) c. Thyroid I hope this helps! Feel free to contact me if you have any questions.






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Posted by Diabetes Melitus at 9:24 AM