MCB450SU10_ExamIKEY - MCB 450 Summer 2010 Examination 1...

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MCB 450 Summer 2010 Examination 1 – Answer Key 1. D 2. A 3. A 4. D 5. D 6. A 7. C 8. E 9. C 10. E 11. E 12. A 13. E 14. C 15. E 16. C 17. B 18. A 19. C 20. pH = -log[H + ] = 4.19 21. pH = pK + log A - /HA 9.2 = 9.6 + log [-NH 2 ]/[-NH 3 + ] 0.4 = log [-NH 3 + ]]/[-NH 2 ] 10 .4 = [-NH 3 + ]]/[-NH 2 ] = 2,51/1 22. (a) 2 (b) α carboxyl, α amino (c) and (d) See graph. 23. 18. ATP + H 2 O = ADP + Pi Δ G o _ = -30.5 kJ/mol
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Glycerol + Pi = Glycerol 3-phosphate + H 2 O Δ G o _ = +9.2 kJ/mol Net: Glycerol + ATP = Glycerol 3-phosphate + ADP Δ G o _ = -21.3 kJ/mol 24. Δ G_ = Δ G o _ + RTln([DHAP][G3P]/[FBP]) = +23.9 + .008314 _ 310 ln ([l.00014][.000019]/[.000031]} = -0.233 kJ/mol 25. Many answers are possible. Give credit for any reasonable answer, but deduct credit for wrong statements. (a) A weak polar interaction between a hydrogen attached to an element with an unshared electron pair and another element with an unshared electron pair. (b)
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This note was uploaded on 02/09/2012 for the course MCB 450 taught by Professor Mintel during the Spring '07 term at University of Illinois at Urbana–Champaign.

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MCB450SU10_ExamIKEY - MCB 450 Summer 2010 Examination 1...

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