References)Fill in the missing substances in the following electron transport chain reaction sequence. Enter the substances in any order.FESPCoaList the two citric acid eycle intermediates involved in the reaction catalyzed by fumarase. List the reactant first.(If needed, enter an "a" as "a." For example, a-ketoglutarate would be entered as a-ketoglutarate.)Submit AnswerTry Another Version2 item attempts remainingThis cell organelle maintains a pH between 4 and 6. What is it called?

In higher eukaryotic organisms, mitochondria act as a powerhouse of the cell, as the energy…

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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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ter reading the "Using spectrophotometers to study a Catechol Oxidase Reaction" section, copy into your notebook the simplified catechol>benzoquinone equation (include the molecule shapes, not just their names).
The decomposition reaction of hydrogen peroxide (H₂O₂) proceeds as follows: 2 H₂0₂ → 2 H₂O + 0₂ 2 This reaction can occur without a catalyst, in the presence of a chemical catalyst (platinum) or of a biological catalyst (catalase). 1- From the values given in the table below, determine the catalytic power of each catalyst (ratio of the catalyzed rate of reaction to the uncatalyzed rate). 2- Which catalyst is the most efficient? Reaction conditions No catalyst Platinum Catalase Ea (kJ.mol¹) at 20 °C 75 49 8
The structure of a metalloenzyme active site is down below(black picture). Describe, from a chemical and structural perspective, how the reactive site is designed to facilitate its catalytic reaction. The example below suggests the level of detail that is required. Make sure that you explain what the metal is doing, what the reaction is, and its biological significance.
The accompanying figure shows three Lineweaver–Burk plots for enzymereactions that have been carried out in the presence, or absence, of aninhibitor. Indicate what type of inhibition is predicted based on eachLineweaver–Burk plot. For each plot indicate which line corresponds to thereaction without inhibitor and which line corresponds to the reaction withinhibitor present.
Consider an enzyme that follows standard Michaelis-Menten kinetics and has the following kinetic constants: %3| k2 = 1.5 x 10? s1 Еo 3D 1 х 104 М = 1 x 104 M a. What is the value of the maximum rate VM? b. Prepare a hand-drawn quantitative plot on graph paper (not a simple sketch nor an EXCEL-generated graph) of the enzymatic reaction rate versus substrate concentration (like Fig 3-3) using the kinetic parameters given above. Be sure to label the axes and include numeric values on the axes. C. Based upon your hand drawn saturation plot, at what substrate concentration is the enzymatic reaction rate 75% of Vm?
The pKa for histidine is pKa = 6.1 while that for cysteine is pKa = 8.0 2. Assume that both histidine and cysteine are catalytic groups for a particular enzyme. Assume also that the side chain of cysteine must be in the deprotonated form. Estimate the pH at which the catalytic activity of this enzyme is the maximum and sketch a pH-activity graph.
Some enzymes have catalytic activity only limited by diffusion. Which rate constants of an enzyme- catalyzed reaction is/are rate limiting for the enzyme? How does this line up/compare to the rate limiting step of Michaelis-Menten Enzyme Kinetics? (Please show work and correct answer)
The glucose oxidase used in this experiment has a concentration of 27 U/mg. Calculate the mass (in g) of solid glucose oxidase required to react with all the glucose in 4.00 µL of10.0- mM glucose sample assuming the reaction proceeds for 30 minutes.
Write the balanced reaction catalyzed by phophoenolpyruvate carboxylase (P PC). Remember to add any cofactors, and to draw the structure formulas (a line-bond representation is fine) for the main substrate and product of the reaction.
molecule A Plot of velocity versus substrate B Lineweaver-Burk plot 1/v Km 1 Vmax (S) Vmx 1 V max 1/2Vmax 1/Vmax -1/Km Km [S] 1/[S] fppt.com molecule Exercise The following data describe an enzyme-catalyzed reaction. Plot these results using the Lineweaver-Burk method, and determine values for KM and Vinax- The symbol mM represents millimoles per liter; 1 mM = 1 × 10 3 mol L. (The concentration of the enzyme is the same in all experiments.) Velocity (mM sec-) Substrate Concentration (тм) 2.5 0.024 5.0 0.036 10.0 0.053 15.0 0.060 20.0 0.061 fppt.com
Lysozyme catalyzes a "bi-bi" reaction, which means there are (how many) reactants and (how many) products. List, in order, the reactants that bind and the products that are released during a lysozyme-catalyzed reaction cycle -- be succinct but be specific. 1. First reactant = 2. First product = 3. Second reactant = 4. Second product %3D
Question 1. Put away your notes and text and draw the complete Calvin-Benson cycle starting from 3molecules of Ru1,5BP. Show stoichiometry along the way using 6 GAP molecules to regeneratethe 3 Ru1,5BPs. Label each reaction according to its enzyme class (your choices arecarboxylase, kinase, dehydrogenase, aldolase, epimerase, isomerase, phosphatase, andtransketolase – see the posted enzyme guide for help on this).

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