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SpringExam1 - Name KEY Bio 416K Human Physiology and...

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Name _____________________________ KEY - Bio 416K Human Physiology and Functional Anatomy I Exam 1 Spring 07 1.An intravenous (IV) solution that is 5% glucose in 0.45% NaCl is ____________________ and ___________________ compared to normal human body osmolarity. (mw glucose 180, n=1; mw NaCl 58.5, n=1.8) a.Isosmotic and isotonic b.Isosmotic and hypertonic c.Hyposmotic and hypotonic d.Hyperosmotic and isotonic e.Hyperosmotic and hypotonic 2. Intestinal cells absorb glucose, galactose and fructose by carrier-mediated transport. Poisoning the cells’ mitochondria inhibits the absorption of glucose but fructose and galactose are still absorbed. What can you correctly conclude? a. All are absorbed by facilitated diffusion b. All are absorbed by active transport c. Fructose & galactose are actively transported; glucose is moved by facilitated diffusion d. Glucose is actively transported; fructose & galactose are moved by facilitated diffusion e. None of the above are correct 3. Which of the following statements best describes diffusion of a solute across a human cell membrane? 4. Nurse Cameron needs to mix an intravenous solution to treat an emergency room patient who has lost a lot of blood. She needs to stabilize this patient until blood can arrive from the blood bank. The available solutes include glucose, NaCl and urea. What IV solution should nurse Cameron prepare? 5. Facilitated diffusion and active transport differ in that ______________________. 1
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does not
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