KEY-Bio416K_Exam1_Spr_06

KEY-Bio416K_Exam1_Spr_06 - Name _ KEY - Bio416K Physiology...

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Name _____________________________ KEY - Bio416K Physiology and Functional Anatomy Lecture Exam 1 Spring ‘06 1. Which of the following is the most correct sequence for a homeostatic control pathway? a. stimulus, effector, efferent path, integrating center, negative feedback, response b. response, stimulus, effector, efferent path, integrating center, afferent path, receptor c. receptor, stimulus, integrating center, efferent path, receptor, response d. stimulus, receptor, efferent path, integrating center, afferent path, effector, response e. stimulus, receptor, afferent path, integrating center, efferent path, effector, response 2. An intravenous (IV) 10 % glucose in 0.45% NaCl solution is normally: a. isosmotic and hypotonic b. hyperosmotic and hypertonic c. isosmotic and hypertonic. d. hyperosmotic and hypotonic. e. hyperosmotic and isotonic. 3. The cell membrane consists of a phospholipid bilayer: a. arranged with the hydrophobic ends to the extracellular or intracellular fluid b. arranged with the hydrophilic ends to the extracellular or intracellular fluid c. totally insoluble in water, to protect the contents of the cell d. that readily dissolves in water e. that is a static structure and never changes its arrangement 4. A layer of glycoproteins and a network of fine protein filaments that prevents the movement of proteins and other large molecules from the connective tissue to the epithelium describes a ___________________________. a. canaliculi b. reticular lamina c. basement membrane (basal lamina) d. tight junction e. desmosome 5. Oxytocin is a peptide hormone (chemical signal) that causes the smooth muscle of the uterus to contract, but it has no effect on the smooth muscle cells of the small intestine. This difference in responsiveness likely exists because: a. uterine smooth muscle cells do not contain a second messenger system b. intestinal smooth muscle cells do not contain a second messenger system c. uterine smooth muscle cells do not contain specific receptors for oxytocin d. intestinal smooth muscle cells do not contain specific receptors for oxytocin e. oxytocin can move through blood to the uterus but not to the small intestine 1
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6. Which statement about water movement between the ICF and ECF is true? a. a higher NaCl osmolarity in a compartment will cause net water movement into it. b. a higher glucose osmolarity in a compartment will cause net water movement into it. c. a lower NaCl osmolarity in a compartment will cause net water movement into it. d. equal osmolarities of NaCl and glucose will affect water movement the same. e. equal molarities of NaCl and glucose will affect water movement the same. 7. Intestinal cells absorb glucose, galactose and fructose by carrier-mediated transport. Poisoning the cells’ mitochondria inhibits the absorption of fructose but glucose and
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This test prep was uploaded on 04/07/2008 for the course BIO 416K taught by Professor Findell during the Spring '08 term at University of Texas at Austin.

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KEY-Bio416K_Exam1_Spr_06 - Name _ KEY - Bio416K Physiology...

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