Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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Question
Chapter 21, Problem 3P
Interpretation Introduction
Interpretation:
The type of reaction occurring when glycogen phosphorylase degrades glycogen should be determined.
Concept introduction:
The breakdown of glycogen to glucose and glucose-1-phosphate during the process of glycogenolysis. The rate limiting step of glycogenolysis is the release of glucose 1-phosphate from a 1,4-glycosidic bond at the terminal end by the enzyme glycogen phosphorylase.
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X INCORRECT; see section 13.1
Enzymes occasionally display weak "“side" activities. Draw the structure of the product (other than ADP) of the
reaction that results when pyruvate kinase, operating in reverse, uses lactate as a substrate.
For your structure:
1. Do not include primary or secondary hydrogens.
CH2
HO
OH
Edit Drawing
Butch Cassidy and the Sundance Kid. Glutamate dehydrogenase
requires which of the following cofactors:
a. NAD+/NADP+NAD*/NADP+
b. Pyridoxal phosphate
c. Thiamine pyrophosphate
d. Biopterin
. Because of the position of arsenic in the periodic table, arsenate
(AsO}-) is chemically similar to inorganic phosphate and is used by
phosphate-requiring enzymes as an alternative substrate. However,
organic arsenates are quite unstable and spontaneously hydrolyze.
Arsenate is known to inhibit ATP production in glycolysis. Identify
the target enzyme, and explain the mechanism of inhibition.
Chapter 21 Solutions
Biochemistry
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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Similar questions
- G. ENZYME CLASSIFICATION. Identify the main class of enzymes used to catalyzed the following reactions: 1. Lactate dehydrogenase: NADH+H NAD HC-OH CH3 CH Pynnte Lactate 2. Methylmalonyl-CoA mutase: CH CH SCOA CH,CH, SCOA coenzyme B12 COO COO methylmalonyl-CoA succinyl-CoA 3. Enolase: 0. H–Ċ–0–P–0- C-0–P-0- + H,0 HO–CH, CH 6 Phosphoenolpyruvate 2-Phosphoglycerate 4. Chymotrypsin: -0–CH,CH3 + H2O - RCOOH + HOCH,CH3 5. Pyruvate carboxylase: coo • co, • ATP + H,0 H-C-H . ADP + P, + 2H čoo CH, Pyruvate Oxaleacetatearrow_forwardMatch each enzyme to its function. Hint: You may be unfamiliar with some of the enzymes below but you can still use what you have learned about how enzymes are named ("enzyme nomenclature") in chapter 4 to answer this question correctly. glutamate dehydrogenase an enzyme that reduces bi v lactate dehydrogenase oxidizes the molecule crea v creatine kinase an enzyme that reduces bi v glucokinase oxidizes the molecule glut v pancreatic lipase oxidizes the molecule lact: v salivary lipase an enzyme that reduces bi varrow_forwardGlycogen synthesis and glycogen breakdown are catalyzed by separate enzymes. Contrast the reactions in terms of substrate, cofactors (if any), and regulation.arrow_forward
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