Exam 1 Key 2007

Exam 1 Key 2007 - Name_ Student number _ BCHM 2024...

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Name_________________________ Student number _______________ BCHM 2024 Examination # 1 February 21, 2007 Use the following structures to answer questions 1 through 6. CH 3 CH 2 OH CH 3 C O O CH 3 CH 3 C CH 3 O A B C CH 3 C NH 2 O CH 3 NH 2 CH 3 C O O C O D E F CH3 1. Which of the above compounds is an anhydride? F 2. Which of the above compounds is an amine? E 3. Which of the above compounds is an alcohol? A 4. Which of the above compounds results from reaction of an alcohol with a carboxylic acid? B 5. Which of the above compounds is an amide? D 6. Which of the above compounds is a ketone? C 7. Fetal hemoglobin (HbF) has a different binding affinity for oxygen than does adult hemoglobin (HbA) because: A. HbF binds 2,3-bisphosphoglycerate (BPG) more tightly than does HbA. B. HbF does not bind BPG. C. The different binding affinities of HbF and HbA have nothing to do with BPG. D. HbF binds BPG less tightly than does HbA . 8. If the pH of a buffer solution is 6.0 and the pKa of that buffer is 7.0, what is the acid (HA) to conjugate base (A - ) ratio in that buffer? A. 100:1 D. 1:10 B. 10:1 E. 1:100 C. 1:1
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Use the following proteins to answer questions 9 through 12: A. Collagen D. Insulin B. Myoglobin E. None of the above C. Hemoglobin 9. Is a quarternary protein with four subunits. C 10. Has little tertiary structure. A 11. Is a compact, globular protein without quarternary structure. B 12. Is a quarternary protein with two subunits. D
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This note was uploaded on 05/06/2008 for the course BCHM 2024 taught by Professor Keenan during the Spring '08 term at Virginia Tech.

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Exam 1 Key 2007 - Name_ Student number _ BCHM 2024...

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