BIO 203 Exam 2 Form 0 Spring 2011

BIO 203 Exam 2 Form 0 Spring 2011 - Turn OFF ALL Electronic...

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Turn OFF ALL Electronic Devices BIO 203 – EXAMINATION 2 – SPRING 2011 April 6, 2011 Fill in your SCANTRON sheet as directed below. Do not forget to blacken the circles . ON YOUR SCANTRON: Enter your NAME at the top, last name first DO NOT FILL IN YOUR BIRTHDATE Enter your STONY BROOK ID# in the LOWER LEFT CORNER In the WHITE MARGIN of the TOP LEFT , print the FIRST TWO WORDS of QUESTION #1 In the WHITE MARGIN of the TOP RIGHT, SIGN YOUR NAME DO NOT MARK ANY OTHER SPACES (except answers) ON THE SCANTRON Exam: There are 25 QUESTIONS . Check your exam to make sure it is complete. The format of the exam is multiple choice. For each question you must choose the most incorrect answer. Mark your answers on the scantron sheet using a soft #2 pencil. Points: Each question is worth 4 points for a total of 100 points . There is no penalty for guessing. Answers & Grades: The answers will be posted on the BIO 203 Blackboard site after the exam is completed. Grades will be posted in the gradebook on the BIO 203 Blackboard site as soon as possible (this usually takes 4-5 days). Scantron sheets will not be returned. Choose the Most Incorrect Answer
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BIO 203 – Spring 2011 Exam 2 6 April 2011 Page 2 For all questions choose the most INCORRECT answer 1) Glomerular filtration: a) Increasing afferent arteriolar blood pressure will lead to afferent arteriolar smooth muscle contraction and a decrease in GFR b) During a period of rest (or sleep) myogenic autoregulation of GFR results in afferent arteriolar smooth muscle relaxation and an increase in GFR c) An increase in rate of flow of filtrate past macula densa cells in the distal tubule results in the release of paracrines that contract afferent arteriolar vascular smooth muscle and release renin from JG cells d) The glomerular filtrate in Bowman space exerts a hydrostatic pressure opposite to the hydrostatic pressure exerted by plasma in glomerular capillaries 2) Cardiovascular measurements: a) In ventricular muscle an increase in the frequency of sarcomere shortening would correlate with an increase in the PR time interval of the ECG b) In a Lead II ECG the P wave correlates with the binding of Ca ++ to troponin in atrial muscle c) The complex QRS wave correlates with Ca ++ -induced Ca ++ release in left ventricular muscle d) The repolarization of ventricular muscle cells correlates with the T wave of the ECG and ventricular diastole 3) Bulk flow (any variable not mentioned is held constant): a) If blood pressure at the venous end of a capillary increased, the resultant shift of fluid between ECF compartments would lead to a decrease in plasma osmotic pressure b) If disease impaired lymph flow into the venous circulation, one consequence would be an increase in interstitial fluid volume because capillary filtration > capillary absorption c) If protein levels in plasma were significantly reduced, there would be an increase in the bulk flow of ECF from the plasma compartment to the interstitial fluid compartment
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This note was uploaded on 05/21/2011 for the course BIO 203 taught by Professor Johncabot during the Spring '08 term at SUNY Stony Brook.

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BIO 203 Exam 2 Form 0 Spring 2011 - Turn OFF ALL Electronic...

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