BIOCHEMISTRY (LOOSELEAF)-W/ACCESS
9th Edition
ISBN: 9781319425784
Author: BERG
Publisher: Macmillan Higher Education
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Question
Chapter 15, Problem 18P
Interpretation Introduction
Interpretation:
The values of
Concept introduction:
When any reaction is at equilibrium then a constant expresses a relationship between the reactant side and the product side. This constant is known as equilibrium constant. It is denoted by
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More ratios. Through the use of nuclear magnetic resonance
spectroscopy, it is possible to determine the ratio between the
protonated and deprotonated forms of buffers. (a) Suppose the ratio
of [ A- ]A I to [HA] is determined to be 0.1 for a buffer with
pKar6.0.pKa = 6.0. What is the pH? (b) For a different buffer,
91974
suppose the ratio of [ A- ]lA J to [HA] is determined to be 0.1 and
the pHpH is 7.0. In this case, what is the pKapKa of the buffer? (c) For
another buffer with pKa=7.5PKa = 7.5 at pH 8.0pH 8.0, what is the
expected ratio of [ A- ][A ] to [HA]? do
Activity (% Max.)
Using your knowledge of aspartyl proteases, develop a plausible explanation for why protein activity changes when pH is
increased or decreased from pH 4, as shown in the graph.
06
08
09
10+
4.
9.
Hd
Which statements are true?
The protein is active when one asp residue is protonated and the other is deprotonated.
O Both asp residues are protonated at more basic pH values.
O Active aspartyl proteases have only one asp residue in the active site.
Only one asp side chain is protonated at low pH (below pH 3.5).
Both asp side chains are deprotonated at higher pH values.
. Provide an explanation for the fact that a-D-mannose is more stable
than B-D-mannose, whereas the opposite is true for glucose.
Chapter 15 Solutions
BIOCHEMISTRY (LOOSELEAF)-W/ACCESS
Ch. 15 - Prob. 1PCh. 15 - Prob. 2PCh. 15 - Prob. 3PCh. 15 - Prob. 4PCh. 15 - Prob. 5PCh. 15 - Prob. 6PCh. 15 - Prob. 7PCh. 15 - Prob. 8PCh. 15 - Prob. 9PCh. 15 - Prob. 10P
Ch. 15 - Prob. 11PCh. 15 - Prob. 12PCh. 15 - Prob. 13PCh. 15 - Prob. 14PCh. 15 - Prob. 15PCh. 15 - Prob. 16PCh. 15 - Prob. 17PCh. 15 - Prob. 18PCh. 15 - Prob. 19PCh. 15 - Prob. 20PCh. 15 - Prob. 21PCh. 15 - Prob. 22PCh. 15 - Prob. 23PCh. 15 - Prob. 24PCh. 15 - Prob. 25PCh. 15 - Prob. 26PCh. 15 - Prob. 27PCh. 15 - Prob. 28PCh. 15 - Prob. 29PCh. 15 - Prob. 30PCh. 15 - Prob. 31PCh. 15 - Prob. 32PCh. 15 - Prob. 33PCh. 15 - Prob. 34PCh. 15 - Prob. 35PCh. 15 - Prob. 36PCh. 15 - Prob. 37PCh. 15 - Prob. 38PCh. 15 - Prob. 39P
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