Biochemistry
6th Edition
ISBN: 9781305577206
Author: Reginald H. Garrett, Charles M. Grisham
Publisher: Cengage Learning
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Textbook Question
Chapter 17, Problem 6P
Why Do Anabolic and Catabolic Pathways Differ? Why is the pathway for the biosynthesis of a
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Chapter 17 Solutions
Biochemistry
Ch. 17 - Global Carbon Dioxide Cycling Expressed as Human...Ch. 17 - Prob. 2PCh. 17 - Where Do the O Atoms in Organisms Come From? Name...Ch. 17 - How Do Catabolism and Anabolism Differ? What are...Ch. 17 - How Art the Enzymes of Metabolic Pathways...Ch. 17 - Why Do Anabolic and Catabolic Pathways Differ? Why...Ch. 17 - Prob. 7PCh. 17 - How Is Metabolism Regulated? (Integrates with...Ch. 17 - Prob. 9PCh. 17 - Prob. 10P
Ch. 17 - Which Is “Better: NMR or MS? Compare and...Ch. 17 - How Do Vitamin-Derived Coenzymes Aid Metabolism?...Ch. 17 - What Art the Features of the Series of -omes?...Ch. 17 - Prob. 14PCh. 17 - Prob. 15PCh. 17 - Prob. 16PCh. 17 - Prob. 17PCh. 17 - Prob. 18PCh. 17 - Which of the following experimental approaches is...Ch. 17 - Prob. 20P
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- create a single illustration that will interrelate or link the two opposing pathways, the Glycogenesis and Glycogenolysis. I want you to include the enzyme in each step and include some important by-products as well. From the illustration, I want you to encircle the intermediate molecule to highlight the link between the two processes. Aside from the illustration, I want you to compare and contrast the two pathways in terms of function, number of reaction steps, and usage of UTP. You can tabulate this part to make it simpler.arrow_forwardWhich of the following statement regarding coenzyme A is incorrect? a) The B vitamin pantothenic acid is present as a subunit of its structure. b) Its main biochemical function is to transfer acetyl groups. c) Its structure contains a phosphorylated ADP.. d) The B vitamin pantothenic acid is the “active” subunit of the coenzyme A.arrow_forwardWhich of the following catalyzes reactions that incorporate nitrogen derived from glutamine? a) Glutamine synthase b) Glutamine amidotransferase c) Adenylyltransferase d) Glutamate synthasearrow_forward
- What is the committed step of pyrimidine biosynthesis? Include the names and structures of any product(s), substrate(s), and cofactors, and the name of the enzyme responsible.arrow_forwardHow Do Catabolism and Anabolism Differ? What are the features that generally distinguish pathways of catabolism from pathways of anabolism?arrow_forwardIsozymes: d) One way of regulating metabolic pathways is through isozymes. What is an isozyme? e) Provide a concrete example of an isozyme from carbohydrate metabolism. f) From your chosen isozyme in part b), describe how it is regulated differently in various cells.arrow_forward
- The following are coenzymes or cofactors involved in enzymatic reactions. Identify the biochemical role that each plays within a biochemical transformation: Cofactor/Coenzyme Biochemical Role S-adenosylmethionine NADH NADPH FADH2 Biotin Pyridoxal Phosphate Tetrahydrofolatearrow_forwardcreate a detailed flow chart or diagram that will illustrate all the important features of the glycolytic pathway. I want you to place in your flow chart or diagram the following important information like: 1. the reactants and products of each step, 2. enzymes involved in each step, 3. important by-products generated in some steps, 4. type of the reaction of each step, 5. and the outline of the two stages of the pathway. Also, discuss briefly (4 sentences) how Galactose and Fructose enter the glycolytic pathway.arrow_forwardcomplex allosteric regulation of the aspartate transcarbamoylase reaction is significant because it links? a) citric acid cycle and catecholamine biosynthesis b)glycolysis and lactic acid fermentation c) opiate with neurotransmitter d) glycolysis and fatty acid metabolism e) amino acid and nitrogenous base metabolismarrow_forward
- Why is gluconeogenesis labeled as enzymatic by-pass reactions?arrow_forwardD) Carbohydrate catabolism involves substrate-level phosphorylation. E) My answer is not here 27. The adduct acetoacetyl-acyl carrier protein is formed as an intermediate during fatty acid biosynthesis. The CO2 used to synthesize malonyl-S-CoA is lost. Would this help make the reaction more or less energetically favorable? A) Loss of CO2 increases entropy (AS) and therefore decreases the favorability of the reaction (AG). B) Loss of CO2 has no effect on entropy (AS) and therefore does not affect the favorability of the reaction (AG). C) Loss of CO2 increases entropy (AS) and therefore increases the favorability of the reaction (AG). D) Loss of CO2 decreases entropy (AS) and therefore decreases the favorability of the reaction (AG). E) Loss of CO2 decreases entropy (AS) and therefore increases the favorability of the reaction (AG).arrow_forwardThe PDH complex is a logical point of regulation in metabolism, as it links two major catabolic processes. Answer the following regarding the complex: a) Explain the advantage of E1, E2 and E3 working as a complex as opposed to separately. b) Explain the purpose of each of the three enzymes and their associated cofactors. c) NADH can inhibit the PDH complex directly or indirectly. What is the purpose of inhibition by NADH? d) Explain the differences between direct and indirect inhibition by NADH. Be sure to indicate the components involved and the mechanism of inhibition (impact on target component).arrow_forward
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