Biochemistry (Looseleaf)
9th Edition
ISBN: 9781319114800
Author: BERG
Publisher: MAC HIGHER
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Question
Chapter 21, Problem 27P
Interpretation Introduction
Introduction:
Glycogen synthesis is regulated by several enzymes, including allosteric factors which regulate the activity of these enzymes and hormones.
Concept introduction:
Glycogen synthesis is not a single step reaction; it involves several enzymes and regulatory factors.
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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.
Sweet proteins. List the key classes of glycoproteins, their defining characteristics, and their biological functions.
Amino AcidMetabolism.
a. What are the SIXprecursors used in amino acid biosynthesis?
b. What are the SEVEN metabolic intermediates that result from amino acid degradation?
c. Circle the metabolites found in your answers to both a) & b) above.
d) What is the difference between glucogenic and ketogenic amino acids? List the glucogenic amino acids, the ketogenic amino acids & the amino acids that are both glucogenic & ketogenic.
Chapter 21 Solutions
Biochemistry (Looseleaf)
Ch. 21 - Prob. 1PCh. 21 - Prob. 2PCh. 21 - Prob. 3PCh. 21 - Prob. 4PCh. 21 - Prob. 5PCh. 21 - Prob. 6PCh. 21 - Prob. 7PCh. 21 - Prob. 8PCh. 21 - Prob. 9PCh. 21 - Prob. 10P
Ch. 21 - Prob. 11PCh. 21 - Prob. 12PCh. 21 - Prob. 13PCh. 21 - Prob. 14PCh. 21 - Prob. 15PCh. 21 - Prob. 16PCh. 21 - Prob. 17PCh. 21 - Prob. 18PCh. 21 - Prob. 19PCh. 21 - Prob. 20PCh. 21 - Prob. 21PCh. 21 - Prob. 22PCh. 21 - Prob. 23PCh. 21 - Prob. 24PCh. 21 - Prob. 25PCh. 21 - Prob. 26PCh. 21 - Prob. 27PCh. 21 - Prob. 28PCh. 21 - Prob. 29PCh. 21 - Prob. 30PCh. 21 - Prob. 31PCh. 21 - Prob. 32PCh. 21 - Prob. 33PCh. 21 - Prob. 34PCh. 21 - Prob. 35PCh. 21 - Prob. 36PCh. 21 - Prob. 37PCh. 21 - Prob. 38PCh. 21 - Prob. 39PCh. 21 - Prob. 40PCh. 21 - Prob. 41PCh. 21 - Prob. 42PCh. 21 - Prob. 43PCh. 21 - Prob. 44PCh. 21 - Prob. 45PCh. 21 - Prob. 46P
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