Biochemistry: The Molecular Basis of Life
6th Edition
ISBN: 9780190209896
Author: Trudy McKee, James R. McKee
Publisher: Oxford University Press
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Chapter 9, Problem 3RQ
Summary Introduction
To review:
Definition of following terminologies:
(a) Amphibolic pathway
(b) Anaplerotic reaction
(c) Glyoxylate cycle
(d) Reduction potential
(e) Conjugate redox pair
Introduction:
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Question 9
The nucleoside monophosphates are seen in metabolic pathways because their phosphoric anhydride bonds can be hydrolyzed off for
energy.
A) True
B) False
A metabolic pathway that functions in both anabolic andcatabolic processes is called an _____________________pathway.
Question 1.
a) Explain how 5 specific fatty acids ultimately generate specific classes of prostaglandins and leukotrienes that are involved in blood pressure, platelet aggregation and inflammation.b) Indicate and explain the specific effects of each of these classes of prostaglandins and leukotrienes on blood pressure, platelet aggregation and inflammation.c) Identify which foods, functional foods and nutraceuticals provide one or more of these 5 fatty acids.
Chapter 9 Solutions
Biochemistry: The Molecular Basis of Life
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- The following question focuses on how the parameters regulating enzyme function might change, and how these might appear graphically on a Michaelis-Menten plot and a Lineweaver-Burke plot. Carbonic anhydrase is an enzyme that will convert CO2 and water into HCO3. CO2 + H20 > H+ + HCO3 There are many different isoforms of this enzyme. (see for instance http://en.wikipedia.org/wiki/Carbonic_anhydrase 1 Assume that one variant has a Km of 10 µM and a different variant has a Km of 100 µM. Draw on the same graph a typical Michaelis-Menton plot showing the alteration in the rate of carbonic anhydrase as the CO2 level is varied for the two different variants of enzyme, assuming the concentration of the enzyme (10 mM) in the test tube is kept constant. Assume that you have equal amounts of the two different variants of carbonic anhydrase in a number of test tubes and that the Vmax for both enzymes are the same. Be sure to label the axes. For the same conditions as above, draw a…arrow_forwardThe following question focuses on how the parameters regulating enzyme function might change, and how these might appear graphically on a Michaelis-Menten plot and a Lineweaver-Burke plot. Carbonic anhydrase is an enzyme that will convert CO2 and water into HCO3. CO2 + H20 > H+ + HCO3 There are many different isoforms of this enzyme. (see for instance http://en.wikipedia.org/wiki/Carbonic_anhydrase . Imidazol is a competitive inhibitor of carbonic anhydrase. It is effective at an alkaline (high) pH; in lower (more acidic) pH, it no longer inhibits the enzyme. Draw on a separate graph a Lineweaver-Burke plot for the effects of this compound at high pH and low pH. Be sure to label the axes and put in sample data points.arrow_forwardQuestion 18 There is energy requirement for every amino acid added in a growing polypeptide chain. A) True B) Falsearrow_forward
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