2.Glvcolate is oxidized into Glvoxylate by cytochrome C using the glycolate oxidase enzyme. The two half-reactions are shown below in their standard reduction forms.но+2 H* (aq) + 2 eGlyoxylateGlycolateCytC-Fe* +eCytC-Fea) What is the overall reaction in the enzyme redox reaction?b) Given that the (i) equilibrium constant at pH-7 and 25 C for the overall reaction in (a) is 2.14x10", and (i) thebiochemical standard reduction potential of cytochrome C is +0.25 V, calculate the overall biochemical standardvoltage at the enzyme (E") and the biochemical standard reduction potential of glyoxylate.

Glycolate oxidase is a key enzyme involved in the conversion of glycolate to glyoxylate during…

Answered: 2. Glvcolate is oxidized into…

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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One of the steps in psilocybin biosynthesis is the phosphorylation of 4-hydroxytryptamine By the enzyme Psik as shown below, that involves the hydrolysis of ATP. NH₂ OH HO Psik HO of A& ADP 4-hydroxytryptamine ATP norbaeocystin The standard free energy changes for each reaction is shown in the Table below. J reaction 4-hydroxytryptamine + P₁ → norbaeocystin ATP → ADP+ Pi (b) What is the equilibrium constant at 37 °C? AG 27.7 kJ/mol -32.2 kJ/mol (a) Write the net reaction. What is the standard free energy change for the net reaction? (c) In the cell, the concentration of ATP is 3.1 mM, the concentration of P; Is 5.90 mM, and the Concentration of ADP is 220 μM. What will AG Be if the concentration of norbaeocystin Is always kept at 1/100 of the concentration of 4-hydroxytryptamine?
II. Predict the products of the following reactions, if there is none, write NO RXN. Also indicate, if the reaction is fast or slow. HO O: НО -H- H- -HO- 1.) 2.) Sucrose + Resorcinol/dilute HCl + Copper (II) Acetate/Acetic Acid HO.
NH3 H-SCO A LES NH CH₂ NH CH₂ CH₂ 3 H-SCO A H3C SCO A 5. Describe the role of His in the catalytic mechanism shown.
The isoelectric point (pI) of 6-phosphogluconate dehydrogenase is 6.0. Explain why the buffer used in DEAE cellulose chromatography must have a pH greater than 6 but less than 9 in order for the enzyme to bind to the DEAE resin.
What is the enzyme classification of the catalyst used in the conversionof oxalosuccinate to alpha-ketoglutarate?
Draw the enediolate intermediate of the ribulose-5-phosphate isomerasereaction (Ru5P → R5P).
2. Isolation of Eugenol a) Devise a flow chart that summarizes the distillation, extraction, and isolation of eugenol performed in this experiment. b) Would you be able to isolate either ethanol from fermented fruit or R-limonene from the peels of oranges by steam distillation? Briefly explain your answer for each case. H. R-limonene
Suggest a name for an enzymes that catalyzes each of the following reactions.1. Hydrolysis of Lactose 2. Oxidation of Nitrate3. Decarboxylation of Citrate4. Reduction of Exalate
1. In a catabolic pathway, metabolite X gets converted into metabolite Y, metabolite X 0 J mol-¹ and AG' is <0 J mol-¹ for this reaction. a) At standard states, is this reaction favorable? b) Is the reaction favorable or unfavorable at cellular condition? c) Is this an endergonic or exergonic reaction in the cell? d) Would you describe this as a thermodynamically downhill or uphill reaction in the cell?
Please answer both of the following 1) The Haworth projection of D-altrose is shownWhat type of cyclic sugar is formed? 2)Which of the following statement is true about the quaternary structure of aprotein? only one answer is correct
What if C-1 of the oxaloacetate were labeled instead, when would the label be released as CO2?
Match the following catalytic strategies with their example. Place a Letter on the picture. There are only two examples given. CH2OH CH2OH CH2OH CH2OH он он OH OH + H20 OH OH OH но H. но но OH OH OH OH OH OH A. Oxidoreducatase B. Transferase C. Hydrolase D. Lyase NH3 E. Isomerase F. Ligase R-CH-COO "ooc-CH2-CH2-C-COO Amino acid a-Ketoglutarate

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