Final Exam Solutions 2011

Final Exam Solutions 2011 - Name Modeling of Biomedical...

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Name: __________________________________ Modeling of Biomedical Engineering Systems BME 348 (14220, 14223, 14224): Final Exam - KEY May 16, 2011 Questions 1-50 are multiple choice. Each question is equally weighted and valued at 2 point. For each question, circle the one answer that you think is most correct. Circle your answer on the Exam sheet AND bubble in your selected answer on the Scantron. Calculators are NOT allowed when working the Exam.
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Name: __________________________________ 4. If the magnitude of the feedback gain (|kH o |) is much greater than unity (|kH o |>>1), the algebraic expression for the closed loop response will closely approximate, A. Open loop response ( H o ) B. Inverse of open-loop response (1/ H o ) C. 1nverse of feedback transfer function (1/ k ) D. Feedback transfer function ( k ) E. None of the above 5. If the open-loop transfer function is H o =c 1 s and the negative feedback transfer function is k=c 2 /s, the closed loop transfer function will approximate: A. Integrator B. Differentiator C. Constant D. Zero E. None of the above 6. When the left ventricle of the heart ejects blood, the aorta expands 2ml for a pressure increase of 50mmHg, the capacitance of the aorta is: A. 25 mmHg/ml B. 0.04 ml/mmHg C. 100 ml · mmHg D. None of the above 7. Consider the concentration of the enzyme-substrate complex [X] in an enzyme substrate reaction. If the enzyme concentration [E] is increased and all other concentrations unchanged, the rate of formation of the enzyme-substrate complex will, A. Increase B. Decrease C. Remain unchanged D. Can not determine E. None of the above 8. Which of the following is NOT a pathway involved in the blood coagulation cascade? A. Extrinsic B. Intrinsic C. Plasmonic D. Common E. None of the above 9. A hormone derived from cholesterol is a A. Amine Hormone B. Thyroid Hormone C. Steroid Hormone D. Catecholamine Hormone E. None of the above
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Name: __________________________________ 10. The hormone involved in the breast feeding control pathway is: A. Human growth hormone B. Insulin C. Oxytocin D. Somatostatin E. None of the above 11. Growth hormone is released from: A. Liver B. Thyroid C. Hypothalmus D. Anterior Pituitary E. None of the above 12. The simplest electrical analog model of a blood vessel we discussed in class consists of a resistor and capacitor. The simple analog model most resembles a: A. Differentiator or high pass filter B. Integrator or low-pass filter C. A simple operational amplifier D. A variable compliance element E. None of the above 13. You are given some data related to the concentration of two hormones over time recorded from 100 women after delivery of a child. You are asked to construct a model for the data. Based on the information given you would construct a: A. Physiological derived model B. Data derived model C. Parameter-identification model D. Analog circuit model E. None of the above 14. In a simple inverting operational amplifier, which one of the following is true compared to the open loop response: A. The gain is increased and the bandwidth is decreased B. The gain is decreased and the bandwidth is increased C. The gain is increased and the bandwidth is increased D.
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Final Exam Solutions 2011 - Name Modeling of Biomedical...

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