BioChemistry > EXAM > BOARD REVIEW QUESTIONS IN BIOCHEMISTRY | well answered questions | 100% correct answers | 20 pages (All)

BOARD REVIEW QUESTIONS IN BIOCHEMISTRY | well answered questions | 100% correct answers | 20 pages

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What is the ion product of water? A. It is the total number of negatively and positively charged ions in 1 liter of aqueous solution. B. It is the product of the concentrations of hydrogen and hydr... oxyl ions in an aqueous solution. C. It is the number of ionized molecules of water in 1 mole of pure water. D. It is the sum of all hydrogen and hydroxyl ions in an aqueous solution. Ans. B Ref: Harper’s Biochemistry 24th ed. pp.18-19 MPL: 0.75 2. A very anxious student hyperventilates an hour before the biochemistry board exam. What is the effect of hyperventilation on his Pco2 and blood pH? A. Pco2 decreases and pH increases. B. Pco2 decreases and pH decreases. C. Pco2 increases and pH decreases. D. Pco2 increases and pH increases. Ans. A Ref: Harper’s Biochemistry 24th ed. Pp. 18-19 MPL: 0.25 3. A protein rich in which of the following amino acids will provide the greatest buffering capacity at physiologic pH? A. Valine B. Aspartic acid C. Lysine D. Histidine Ans. D Ref: Harper’s Biochemistry 24th ed. p.26 MPL: 0.75 4. Which of the following laboratory results would best indicate metabolic alkalosis? A. Increased Pco2, increased pH, increased HCO3. B. Normal Pco2, increased pH, decreased HCO3. C. Increased Pco2, increased pH, normal HCO3. D. Decreased Pco2, increased pH, normal HCO3. Ans. A Ref: Harper’s Biochemistry 24th ed. p.304 MPL: 0.75 5. What is the property of water that will contribute the most to its ability to dissolve compounds? A. Very few interactive forces in its structure. B. Hydrogen bond formation between water and long-chain fatty acids. C. Covalent bond formation between salt and water. D. Hydrogen bond formation between water and biochemical molecules. Ans. D Ref: Harper’s Biochemistry 24th ed. p.15-17 MPL: 0.75 [Show More]

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