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Transcript
Biology 3201 Endocrine Review 1. Which hormone best fits the graph below? (A) adrenaline (B) estrogen (C) melatonin (D) thyroxine 2. Which disorder is caused by a deficiency of thyroxine? (A) dwarfism (B) giantism (C) hyperthyroidism (D) hypothyroidism 3. Which would result if the target gland were not stimulated during a negative feedback loop? (A) The hypothalamus would be inhibited. (B) The hypothalamus would be stimulated. (C) The target gland would not secrete its hormone. (D) The target gland would secrete its hormone. 4. The graph below shows the blood glucose levels of a healthy person over a short period of time. Which hormone is most likely secreted by the pancreas at point A? (A) glucagon (B) insulin (C) melatonin (D) somatotropin 5. Which hormone acts on a positive feedback control mechanism? (A) calcitonin (B) oxytocin (C) parathyroid (D) thyroxine 6. What is the main role of the endocrine system? (A) coordinate movement of the body (B) defend the body against illness and infection (C) produce chemicals that affect other parts of the body (D) remove waste products from the blood 7. A disruption in the feedback loop of which structure below results in a slower metabolism? (A) A (B) B (C) C (D) D 5/7/2007 Biology 3201 Endocrine Review 5/7/2007 8. If an adult male lacks facial hair, has a high pitched voice and above average body fat, which hormone is most likely secreted in low amounts? (A) HGH (B) estrogen (C) melatonin (D) testosterone 9. Which hormone can be used to treat diabetes mellitus? (A) glucagon (B) insulin (C) somatotropin (D) thyroxine 10. If a drug completely destroys the cells in the pancreas, which conditions could be expected to develop in the body fluids? (A) (B) (C) (D) blood glucose level high high low low urine glucose level high low high low 11. Which gland releases melatonin? (A) adrenal (B) pineal (C) pituitary (D) thymus 12. How does insulin affect blood in a normal human body? (A) decreases calcium levels (B) decreases glucose levels (C) increases calcium levels (D) increases glucose levels 15. Which best describes the action of a drug that stimulates weight loss? (A) decreases the activity of the thymus gland (B) decreases the activity of the thyroid gland (C) increases the activity of the thymus gland (D) increases the activity of the thyroid gland 16. Which gland controls calcium levels in blood? (A) adrenal (B) pineal (C) thymus (D) thyroid 17. Dwarfism is caused by the under-secretion of which hormone? (A) adrenaline (B) HGH (C) LH (D) thyroxine 18. The graph below shows the blood glucose levels of a healthy person over a short period of time. Which hormone is most likely secreted by the pancreas at point Y? (A) glucagon (B) insulin (C) melatonin (D) somatotropi Biology 3201 Endocrine Review 5/7/2007 19. Which is a result of hyperthyroidism? (A) decreased blood vessel diameter (B) decreased mental capacity (C) increased bone calcium (D) increased metabolic rate 20. Which gland produces and releases a thyroid-stimulating hormone? (A) anterior pituitary (B) hypothalamus (C) posterior pituitary (D) thyroid 21. What causes giantism? (A) overproduction of human growth hormone (B) overproduction of insulin (C) underproduction of human growth hormone (D) underproduction of insulin 22. Which term best describes the actions of adrenaline and noradrenaline? (A) antagonistic (B) complementary (C) negative feedback (D) positive feedback 23. Which gland in the diagram below is responsible for controlling metabolism in the heart, liver, kidney, and muscle tissues? (A) A (B) B (C) C (D) D 24. What would be the best treatment for an individual with an intolerance to cold, decreased heart rate, and weight gain, despite a decreased appetite? (A) combination of insulin, exercise, and diet to control insulin levels (B) diet to reduce the amount of dietary iodine, increasing thyroxine production (C) increase the amount of vitamin D to increase levels of blood calcium (D) injections of thyroid hormone to increase metabolic activity 25. A newly discovered drug is found to increase the volume of urine production. When ADH is administered, the volume of urine returns to normal. Which best describes the action of the new drug? (A) blocks the release of ADH from the kidney (B) blocks the release of ADH from the pituitary (C) triggers the release of ADH from the kidney (D) triggers the release of ADH from the pituitary 26. Which hormone is responsible for stimulating the corpus luteum to produce progesterone? (A) estrogen (B) FSH (C) LH (D) testosterone 1. A child shows abnormal growth of bone tissue causing extra long legs and arms. Biology 3201 Endocrine Review 5/7/2007 What is the probable cause of this condition and give two ways it can be treated? 2. Describe four biological situations that could stop the menstrual cycle and give a reason for each situation.