EXI+answer+key+spr+2007 - Exam 1 Spring 07 1 What is the...

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1. What is the molar hydrogen ion concentration of a solution of HCl at pH 2.5? a. 0.00316 b. 0.00250 c. 0.025 d. 0.6021 e. 1.602 2. An acid is designated at “weak” because (BEST ANSWER) a. It requires more base than a strong acid for neutralization b. It has a low dissociation constant c. It is less corrosive than strong acid d. It is less soluble in water e. It can be readily vaporized 3. Consider the dipeptide thr-pro. Predict the total number of isomeric states including optical and geometric isomers. a. 2 b. 8 c. 16 d. 32 e. 64 4. How many different elements comprise the planar region of the peptide bond? a. 2 b. 3 c. 4 d. 5 e. 6 5. When BPG (2,3-Bisphosphoglycerate) binds to _____ site(s) on hemoglobin, its affinity for O 2 _____. a. four decreases b. four increases c. one decreases d. one increases 6. Which of the following statements is FALSE? a. Since muscle contraction is reversible, there is no chemical change in the reaction between actin, myosin and ATP . b. The contractile process is initiated by calcium ion influx c. Myosin contains ATPase activity d. The myosin protein contains globular and rod-like structures e. To be functional, actin must be in a polymeric state. 7. The side chain of which of the following amino acids, most readily forms a covalent bond through oxidation? a. aspartic acid
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This note was uploaded on 04/14/2010 for the course BHC 3023 taught by Professor Harmen during the Spring '10 term at University of South Florida.

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EXI+answer+key+spr+2007 - Exam 1 Spring 07 1 What is the...

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