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Last_Years_Midterm_Finkelstein - Name TA MCDB 1B Midterm...

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Name _________________________ TA ________________________ MCDB 1B Midterm Examination I February 14, 2007 Scantron Instructions: 1. Use a #2 pencil to complete the form. 2. Write your name and fill in the appropriate bubbles. 3. Write your perm. number in the ID number box and fill in the bubbles. 4. Write the color of your test in the space underneath the ID number box. 5. Fill in the entire rectangle of the answer you choose. If you erase, erase completely READ ALL QUESTIONS THOROUGHLY----IN ALL CASES, PICK THE BEST ANSWER 36 Multiple Choice Questions - 2.5 Points Each 10 True False Questions - 1 Point Each 1. Which of the following structures in a vertebrate with a four-chambered heart would have blood with the lowest oxygen concentration? A. pulmonary vein B. pulmonary artery C. left atrium D. aorta E. arteriole end of a capillary 2. The atrioventricular node is necessary for the propagation of the depolarization wave through the heart because 3. Efficient transport of the respiratory gases A. is limited by the solubility of O 2 and CO 2 in the blood B. depends on specific protein carriers for both O 2 and CO 2 (hemoglobin and carbonic anhydrase, respectively) C. depends on reversible binding of O 2 and hemoglobin that is sensitive to the local [O 2 ] and pH D. depends on reversible binding of O 2 and hemoglobin that is sensitive to only the local [O 2 ] E. depends on active transport of these gases across plasma membranes 4. Which of the following does NOT increase blood flow through a capillary bed? MCDB1B MT1 Yellow Version: 0 Page: 1
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5. As blood moves from the arteriole toward the venule end of a capillary bed
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