The standard reduction potential for (NAD+/NADH) is -0.320 V and the standard reduction potential for (pyruvate/lactate) is -0.185V. Which of the following statements are TRUE?i Multiple answers: Multiple answers are accepted for this questionSelect one or more answers and submit. For keyboard navigation... SHOW MORE ✓abсdefThe standard free energy change (AGO) for the Lactic acid dehydrogenase reaction is -26 kJ/mol.The Keq for the reaction is 36800.If [pyruvate] = 0.05 mM and [Lactate] =2.9 mM and AG for the Lactate dehydrogenase = -15 kJ/mole in erythrocytes the[NAD+]/[NADH] ratio under these conditions is 1.48.The standard reduction potential indicates the electrons will flow from Lactate to NAD+.AEO' for the reaction = -0.135 VThe standard reduction potential indicates the electrons will flow from NADH to Pyruvate.

a. The standard free energy change (ΔG°) for the Lactic acid dehydrogenase reaction is -26 kJ/mol.d…

Answered: The standard reduction potential for…

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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You make reaction progress curve by plotting absorbance vs time (seconds) and find the equation of the line to be y = -0.00235x + 0.7129. Calculate the U/µL and U/mL of lactate dehydrogenase activity in this fraction. The LDH activity is done identical to what is indicated in the lab manual. Show each step of the calculation from AU/time to M/min, to mol/min, to µmol/min to µmol/min/µL (=U/µL).
The standard reduction potential for ubiquione (A or coenzyme Q) is .045 V, and the standard reduciton potential (E) for FAD is -0.219 V. Using these values, show that the oxidation for FADH2 by ubiquinone theoretically liberates enough energy to drive the synthesis of ATP. Faraday constant =96.48KJ/Vol delta G' standard for ATP Synthesis is +30.5 KJ/mol R=8.314 J/mol K=1.987 cal/mol K
In the clinical case scenario provided, match the defective enzyme in Column A with the consequence of this enzyme defect in Column B. IND OAD DH Autopsy results from individual X showed normal levels of glucose and pyruvate, very low levels of NAD+ and very high levels of NADH. Their blood oxygen levels were normal, although the cause of death was given to be a lack of oxygen. Option A B C D Defective enzyme Phosphofructokinase Pyruvate dehydrogenase Cytochrome oxidase Lactate dehydrogenase write your answer here Consequence of this enzyme defect Impaired ATP production Impaired NAD production Impaired respiration Impaired oxygen I L OORD ORD OND DORO G
If 1"co2 (radioactive carbon) were incorporated into the TCA cycle via the Pyruvate Carboxylase reaction which of the following molecules would contain radioactive carbon? Multiple answers: Multiple answers are accepted for this question Select one or more answers and submit. For keyboard navigation. SHOW MORE V a Oxaloacetate Citric acid Isocitric acid d a-Ketoglutarate e Succinyl-CoA Succinate Fumarate Malate b0
Calculate the Kcat for lactate dehydrogenase, which converts pyruvate to lactate in the presence of NADH. The velocity of the reaction in the presence of 250 uM pyruvate was 50 uM/sec for the lactate dehydrogenase concentration of 1 nM. The Kcat of lactate dehydrogenase is ______ (per sec).
Refer to the figure shown here, and determine the value of E for the overall oxidation/reduction reaction (refer to the book/lecture slides if you need help with the overall reaction). 11/12102 + 2H* + 2e¯ → H₂0 NAD + H* + 2e → NADH O-1.136 volts 0.496 volts +1.136 volts -0.496 volts EU (volts) – 0.320
What is the reduction potential (DE) for the reaction catalyzed by isocitrate dehydrogenase if the citric acid cycle is fluxing? To get the answer scored correctly: Please report the answer to three decimal places. Example: 0.123 or -0.111 Do not include units.
The objective of this problem is to calculate the number of moles of reduced NAD and FAD generated per one mole of glucose consumed by bacteria, growing under aerobic conditions. The consumption of glucose by the bacteria is characterized as follows: for every 1 mole of glucose consumed, 70% is completely oxidized to CO2 and H2O, while 30% of the glucose is diverted to anabolic reactions prior to pyruvate undergoing oxidative decarboxylation. For the purposes of this problem, you should assume that all pyruvate coming to the TCA cycle is completely oxidized and none is diverted to anabolic processes at the diversion points of oxaloacetate, alpha-ketoglutarate or succinyl-CoA. Calculate the NADH and FADH generated
Which of the following statements are True? Multiple answers: Multiple answers are accepted for this question Select one or more answers and submit. For keyboard navigation. SHOW MORE V If [1-14C) Ribose-S-phosphate is incubated with a mixture of purified transketolase- transaldolase-phosphopentose isomerase-phosphopentose epimerase and glyceraldehyde-3-phosphate Fructose-6-phosphate will be labeled in the 1 and 3 positions. a Starting with Glucose 6-phosphate labelled in carbon number 1 with radioactive carbon and taken through the axidative phase of the Pentose Phosphate Pathway and the first transaldolase reaction gives rise to a 7-carbon intermediate labeled with radioactive carbon in carbon number 1. Avidin is a protein that binds extremely tight to biotin. So avidin would be a potent inhibitor of Acetyl CoA Carboxylase. The two electrons derived from the a-Ketoglutarate Dehydrogenase complex come from dihydrolipoic acid. In Fatty Acid synthesis carbon atoms 15 and 16 of Palmitic…
How many moles of NADH will be produced when 1 mole of fructose-1,3-bisphosphate is metabolized to pyuvate and then through TCA cycle Selected Answer: 2.5 Correct Answer: Evaluation Method Exact Match Exact Match Selected Answer: False Answers: True False Question 10 Question 9 The TCA cycle enzyme fumarase catalyzes a reversiable reaction. This enzyme shows a very high degree of selectivity in choosing the substrate for both the forward and the reverse reactions. Specified Answer for: a Specified Answer for: b Correct Answers for: a Question 2 What is the name of the reactant, of the TCA cycle reaction, which yields a GTP? Selected Answer: succinate Correct Answer: Evaluation Method Exact Match Evaluation Method Exact Match Correct Answers for: b Evaluation Method Exact Match This enzyme, Question 2 The coordinated action of the enzymes [a] and [b] is needed for the metabolism of pyruvate to ethanol and CO2. Evaluation Method Exact Match Exact Match Selected Answer: phosphohexoese…
Lactate can be converted into pyruvate by the enzyme lactate dehydrogenase and the coenzyme NAD+. Write the reaction in the standard biochemical format, using a curved arrow to show the involvement of NAD+.
The metabolic reactions and enzymes that require NAD/NADH are shown in Figure 1. However, it is not specified whether oxidized or reduced NAD is used in each reaction, nor what form of NAD is produced as a product. Add this specificity to the attached figure. You are also welcome to draw your own figure.

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