Pg 3.jpeg - AT&T S 8:13 PM 4 0 33 Done 1 of 41 BIOS-352/CHEM-352 Introductory Biochemistry Course Examination#2 Page 2 of 8 3 of 8 STUDENT'S NAME

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Unformatted text preview: AT&T S 8:13 PM @ 4 0 33% Done 1 of 41 BIOS-352/CHEM-352 Introductory Biochemistry Course Examination #2 Page 2 of 8 3 of 8 STUDENT'S NAME: Question 5 (8 points, 1 point for each correct answer): Circle "TRUE" or "FALSE" for each statement below. TRUE or FALSE: Enzymes must be present at the same concentration as their substrates in order to be effective. TRUE or FALSE: Enzymes predominantly increase reaction rates of only the forward reactions. TRUE or FALSE: Activity of an enzyme may depend on pH, temperature, or ionic strength. TRUE or FALSE: Enzymes change the equilibrium of the reactions that they catalyze. TRUE or FALSE: Enzymes possess highest affinity to the substrates of the reactions that they catalyze. TRUE or FALSE: Enzymes are always equally active on D- and L-isomers of a given substrate. TRUE or FALSE: Glutamate residue in the active site of an enzyme can serve as a general acid/base during catalysis. TRUE or FALSE: Penicillin and related drugs inhibit the enzyme transpeptidase that is required for cell wall formation in bacteria. Question 6 (2 points): Which one of the following monosaccharides is not an aldose? A. Ribose B. Glucose C. Fructose D. Mannose E. Glyceraldehyde Question 7 (2 points): Which of the following is an epimeric pair of monosaccharides? A. D-glucose and D-glucosamine B. D-glucose and L-galactose C. D-lactose and D-sucrose D. D-glucose and D-mannose E. L-mannose and L-fructose Question 8 (2 points): Which of the following is not a reducing sugar? A. Glyceraldehyde B. Maltose C. Glucose D. Sucrose E. Fructose BIOS-352/CHEM-352 Introductory Biochemistry Course Examination #2 Page 3 of 8 STUDENT'S NAME:...
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  • Spring '11
  • Nicholas
  • Exam #2

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