Pearson eText for Biochemistry: Concepts and Connections -- Instant Access (Pearson+)
2nd Edition
ISBN: 9780137533114
Author: Dean Appling, Spencer Anthony-Cahill
Publisher: PEARSON+
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Chapter 17, Problem 11P
Interpretation Introduction
nterpretation:
The most probable mechanism for the inhibition of pyruvate kinase by the action of glucagon on the liver cells.
Concept introduction:
The glucagon consists of 29 amino acids and is secreted from the alpha cells of the pancreas. The precursor molecule for this hormone is the proglucagon, which is also the precursor of the GLP-1 and the GLP-2. The sequence of the glucagon is highly conserved among all the vertebrates.
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Macmillan Learning
Cholesterol synthesis begins with the formation of mevalonate from acetyl CoA. This
process activates mevalonate and converts it to isopentenyl pyrophosphate.
Identify the atoms in mevalonate and isopentenyl pyrophosphate that will be labeled
from acetyl CoA labeled with 14C in the carbonyl carbon. Place 14C atoms and C atoms
to denote which carbon atoms are labeled and which are not labeled.
H₂C
COA
14C-labeled acetyl-CoA
HHH
[c]
H
H
OH
014C
- OH
H
HH
H
Mevalonate
CH3
H H
14C
H
Η
H
H
Incorrect Answer
of o
-P-O-P-0-
Isopentenyl pyrophosphate
с
Answer Bank
14C
Chapter 17 Solutions
Pearson eText for Biochemistry: Concepts and Connections -- Instant Access (Pearson+)
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