Practice%20Exam%204%20v1

Practice%20Exam%204%20v1 - BISC 220, Spring 2010, Exam 4 v1...

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BISC 220, Spring 2010, Exam 4 v1 Albert Herrera 1. In the presence of both vasopressin and aldosterone, the greatest fraction of water filtered into kidney tubules is reabsorbed in the … a. distal tubules. d. proximal tubules. b. loops of Henle. e. medullary (lower) collecting ducts. c. cortical (upper) collecting ducts. 2. Which one of the following does not contribute to renal filtration? a. active transport by the epithelial cells of Bowman’s capsule b. high hydrostatic pressure in glomerular capillaries c. permeability of glomerular capillaries d. large surface area for filtration e. podocytes 3. Which one of the following occurs when a person is dehydrated? a. a decrease in plasma osmolarity b. decreased secretion of vasopressin c. an increase in blood flow through the kidney d. a shift of water from the intracellular fluid to the extracellular fluid 4. Which one of the following hormones is not secreted by the anterior pituitary? a. LH c. ACTH e. prolactin b. TSH d. oxytocin 5. Both epinephrine and cortisol are secreted in response to stress. Which one of the following statements is true for both of these hormones? a. Both hormones are secreted into the blood within seconds of the onset of stress. b. Receptors for both hormones are on the surfaces of target cells. c. Adrenocorticotropin stimulates the release of both hormones. d. Both hormones are secreted by the adrenal cortex. e. Both hormones increase levels of blood glucose. 6. A woman complained to a doctor that she has no energy, has been putting on weight, and is cold all the time. The doctor finds that her pulse rate is low and that she has low blood pressure. Laboratory tests reveal that plasma levels of thyroid hormone are low but that levels of thyroid stimulating hormone (TSH) are high. Which one of the following statements is false ? a. The patient’s general level of metabolism is low. b. High levels of TSH rule out a hypothyroid condition. c. An appropriate treatment would be to administer thyroid hormone. d. Similar conditions in an infant would likely cause mental retardation. 7. Which one of the following hormones is incorrectly paired with its function? a. glucagon – stimulates glycogenolysis
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This note was uploaded on 02/28/2012 for the course BIO 220 taught by Professor Morre during the Spring '09 term at USC.

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Practice%20Exam%204%20v1 - BISC 220, Spring 2010, Exam 4 v1...

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