FUNDAMENTALS OF BIOCHEM.-NEXTGEN ACCESS
5th Edition
ISBN: 9781119661450
Author: Voet
Publisher: WILEY
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Chapter 18, Problem 19E
Summary Introduction
To explain: The activities of ADP-ATP translocator and Pi-H+ symport that affect the
Concept introduction: Translocator proteins and symport proteins help to transport proteins to and fro across the membrane. Electrochemical gradient is the difference in solute concentration with chemical potential that help to drive the ions across the membranes.
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3. Which one of the compounds
below is the major product formed by
the reaction sequence shown here?
CH3 +
CH3NO2
NaOH
H2, Ni
?
nitromethane
acetophenone
OH
OH
HO HN-
u x x x x
Ph
A
HO
-NH2
HO
H
Ph
Ph
Ph
N-
H
B
Ph
NH2
D
E
4. Only ONE of the five compounds below can be prepared by an aldol condensation in
which a single carbonyl compound is treated with base. Which one is it?
To solve this problem, reverse the aldol condensation that formed each of these molecules to find out what two molecules
came together to make the products. The one in which the two molecules are identical is the answer.
Ph
Ph
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A
Ph
H
B
Ph
Ph
H
D
Ph.
Ph
Ph
E
H
5. Which one is the major organic
product obtained from the following
reaction sequence?
First, equimolar amounts of cyclopentanone and
LDA are mixed at -78°C. Then propionaldehyde
(propanal) is added. Addition of aqueous acid
completes the process.
LDA, -78°C.
1.
2. H₂O*
H
A
B
H
0
D
H
H
E
Chapter 18 Solutions
FUNDAMENTALS OF BIOCHEM.-NEXTGEN ACCESS
Ch. 18 - Prob. 1ECh. 18 - 2. Certain genetic diseases caused by defective...Ch. 18 - 3. How many ATPs are synthesized for every...Ch. 18 - 4. How many ATPs are synthesized for every...Ch. 18 - 5. Explain why defects in mitochondrial genes...Ch. 18 - 6. Deficiencies of the components of Complexes I,...Ch. 18 - 7. Calculate ?G°+ for the oxidation of free FADH2...Ch. 18 - 8. Show that the free energy change for the...Ch. 18 - Prob. 9ECh. 18 - Prob. 10E
Ch. 18 - Prob. 11ECh. 18 - 12. Under certain conditions, cytochrome c can...Ch. 18 - 13. Some anaerobic prokaryotes use nitrate (NO3?)...Ch. 18 - 14. Some anaerobic prokaryotes reduce elemental...Ch. 18 - Prob. 15ECh. 18 - Prob. 16ECh. 18 - 17. Bombarding a suspension of mitochondria with...Ch. 18 - 18. For the experimental system described in...Ch. 18 - 19. Consider the mitochondrial ADP-ATP...Ch. 18 - 20. What thermodynamic force drives the transport...Ch. 18 - Prob. 21ECh. 18 - Prob. 22ECh. 18 - 23. Explain why compounds such as DNP increase...Ch. 18 - 24. What is the advantage of hormones activating a...Ch. 18 - 25. Describe the changes in [NADH]/[NAD+] and...Ch. 18 - 26. During cell signaling events that increase...Ch. 18 - 27. Activated neutrophils and macrophages (types...Ch. 18 - 28. Mutations in SOD arc associated with the...Ch. 18 - Prob. 29CQCh. 18 - 30. Sketch the O2-consuntption curves obtained for...Ch. 18 - Prob. 31CQCh. 18 - 32. For the mitochondrial membrane described in...Ch. 18 - 33. Nicotinamide nucleotide transhydrogenase (NNT)...Ch. 18 - 34. The antidiabetes drug metformin inhibits...Ch. 18 - 35. How do the P/O ratios for NADH differ in ATP...Ch. 18 - 36. How many protons are required to synthesize...Ch. 18 - 37. During dietary restriction, amino acids may be...Ch. 18 - Prob. 38CQCh. 18 - 39. In coastal marine environments, high...Ch. 18 - Prob. 40CQCh. 18 - 41. (a) A simplistic interpretation of the Q cycle...Ch. 18 - Prob. 42CQCh. 18 - MORE TO EXPLORE Anaerobic organisms produce ATP by...
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