1.YPyruvate+ LactateWrite down the name and the class of the enzyme, catalyzing this reaction. What are X and Y? Answerthe question: Part of what process is this reaction? Is this reaction possible in aerobic conditions? Justifyyour answer.

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Answered: 1. Y Pyruvate Lactate Write down the…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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During glycogen synthesis, glucose-1P is converted into a molecule called UDPG. This reaction also cleaves uridine triphosphate (UTP) forming uridine monophosphate and pyrophosphate (PPi). Provide four reasons why UTP can be used to power this reaction (no diagrams necessary).
Why might the compound shown below act as a transition state analog of phosphoglucose isomerase? A drawing of the normal transition state for this enzyme is needed.
ATP synthase, hexokinase, and isocitrate dehydrogenase are important enzymes in aerobic respiration. Please provide a description for each enzyme containing the following information: (1) the metabolic stage in aerobic respiration they are involved in, (2) the enzyme class where they belong, and (3) the chemical eaction they catalyze.
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Please, please I do not understand this question for Biochemistry. Can you help me? Steps leading to the correct answer would be helpful!
Identify the correct type of metabolic pathway at the four indicated positions
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24. Consider the figure below, which is an alternate way to depict the energy changes occurring during a reaction from Substrate (S) to Product (P), when uncatalyzed (curve A) and when catalyzed by an enzyme (curve B). Note that curve B is not the same way we modeled an enzyme-catalyzed reaction in class; this model is a different, perhaps slightly more realistic, way of conceptualizing the energy changes over the course of a reaction than what we did in class. S and ES represent the transition states for reaction of the free substrate (S) or the enzyme-substrate complex (ES). T T activation energy for uncatalyzed reaction EST S edhosob nohtum od bluo woH abiow yedio 2 wwolaixa-y odi no vaigin oroda dapng odt ni o nfog) r gibadhoa P B ES EP progress of reaction activation energy for catalyzed reaction a) Explain briefly why, in curve B, the energy state of the enzyme-substrate complex is less than the energy state of the substrate alone. b) Suppose the enzyme in the diagram was mutated…
1. Provide the best coenzyme(s) for each step shown below. Give a 1–2 sentence rationale for your choice. 2. Reaction (C) can require multiple coenzymes, or the enzyme may only require one. Briefly describe how the reaction that uses only one coenzyme works. Be specific about the mechanism.
The following diagram shows reaction curves for aspartate transcarbamoylase (ATCase) with carbamoylphosphate and different concentrations of aspartate, in the absence of ATP (curve 1) and presence of ATP (curve 2). What do the shapes of the curves tell us about the ATCase enzyme? 2 جر [aspartate] It binds substrate through a sequential mechanism. It binds substte cooperatively. It obeys Michaelis-Menten kinetics. It binds substrate through a concerted mechanism.
8
1. (a) The reaction catalyzed by citrate synthase is the first step of the TCA cycle. In glycolysis, two key reactions to produce ATP occur because an unfavorable reaction is coupled to another reaction that is thermodynamically favorable. The reaction catalyzed by citrate synthase is similarly coupled to an unfavorable reaction in the TCA cycle. Write the unfavorable TCA reaction using structural formulas and write the key step that drives the two coupled reactions forward. What is the overall AG" of the coupled reactions? (b). K(yM) 25.7 Inhibitor Bromoacetyl-CoA ATP NADH 6800 8300 The inhibitor constants for three inhibitors of por- cine citrate synthase are summarized in the table on the right. The compounds were all determined to bind in the ac- tive site as competitive inhibitors of acetyl-CoA. Because they bind as competitive inhibitors, all three inhibitors must exhibit structural similarity to some part of acetyl-CoA. Look up in the textbook the structural formulas for…

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1. Y Pyruvate Lactate Write down the name and the class of the enzyme, catalyzing this reaction. What are X and Y? Answer the question: Part of what process is this reaction? Is this reaction possible in aerobic conditions? Justify your answer.