BME321ExamI-answer

BME321ExamI-answer - EXAM 1 Name I Circle ALL correct statements(may be more than 1(16 pts 1 Enzymes enhance reaction rates by c ac bc bd are 1 pt

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EXAM 1 Name: I. Circle ALL correct statements (may be more than 1) (16 pts): 1. Enzymes enhance reaction rates by: c ac, bc, bd are 1 pt. other combinations are 0. a. Shifting the equilibrium constant b. By reducing the free energy change between reactant and product c. Lowering the activation energy d. By increasing the free energy of reactant e. None of the above 2. What do prokaryotes not have (that is never have): b ab, bc, bd are 1 pt a. DNA b. Nucleus c. cytoskeleton d. cell wall e. none of the above 3. Mammalian cell growth is affected by: a,b,c,d having any 3 is 1 pt a. surface attachment b. nutrients c. growth factors d. pH e. none of the above 4. In Michaelis-Menten kinetics, reaction rate ( V ) is: b a. 1st order (proportional) with regards to [S] at large [S]. b. zero order (just a constant) with regards to [S] at large [S]. c. always 1 st order with regards to [S]. d. always zero order with regards to [S]. e. none of the above 5. In Michaelis-Menten kinetics, for constant [S], reaction rate is proportional to: c a. the pH. b. the temperature. c. the total amount of enzyme present. d. the Km. e. none of the above 6. Transition state analog inhibitors work because: c. b give 1pt. or if b and c let’s give 1pt. a. their shape remains rigid and does not change shape b. looks extremely similar to the natural substrate of the enzyme c. is complementary in shape and charge to the active site of the enzyme d. contains modified amino acids e. none of the above 7. Which biopolymer is the MOST stable at room temperature neutral pH? c a. Proteins b. Oligosaccharides c. DNA d. RNA e. All are the same
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BME321ExamI-answer - EXAM 1 Name I Circle ALL correct statements(may be more than 1(16 pts 1 Enzymes enhance reaction rates by c ac bc bd are 1 pt

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