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The step that completes the citric acid cycle is the conversion of malate (M) to oxaloacetate (OA) by NAD+. The two redox half cells that are coupled for this reaction are oxaloacetate + 2 H+ + 2 e¯ NAD+ + H+ + 2 e¯ and malate, °' = -0.166 V NADH, °' = -0.320 V. What is the standard state redox potential º' for the conversion of M to OA by NAD+?

The step that completes the citric acid cycle is the conversion of malate (M) to oxaloacetate (OA) by NAD+. The two redox half cells that are coupled for this reaction are oxaloacetate + 2 H+ + 2 e¯ NAD+ + H+ + 2 e¯ and malate, °' = -0.166 V NADH, °' = -0.320 V. What is the standard state redox potential º' for the conversion of M to OA by NAD+?

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Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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The step that completes the citric acid cycle is the conversion of malate (M) to oxaloacetate (OA) by NAD⁺. The two redox half cells that are coupled for this reaction are: oxaloacetate + 2 H⁺ + 2 e⁻ ⇌ malate, ε°' = -0.166 V and NAD⁺ + H⁺ + 2 e⁻ ⇌ NADH, ε°' = -0.320 V. What is the standard state redox potential ε°' for the conversion of M to OA by NAD⁺? Select one: - ○ 0.308 V - ○ -0.308 V - ○ -0.486 V - ○ -0.154 V - ○ 0.486 V
Transcribed Image Text:The step that completes the citric acid cycle is the conversion of malate (M) to oxaloacetate (OA) by NAD⁺. The two redox half cells that are coupled for this reaction are: oxaloacetate + 2 H⁺ + 2 e⁻ ⇌ malate, ε°' = -0.166 V and NAD⁺ + H⁺ + 2 e⁻ ⇌ NADH, ε°' = -0.320 V. What is the standard state redox potential ε°' for the conversion of M to OA by NAD⁺? Select one: - ○ 0.308 V - ○ -0.308 V - ○ -0.486 V - ○ -0.154 V - ○ 0.486 V
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Step 1: Identification of anode and cathode

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In any type of cell, oxidation always takes place at anode and reduction always takes place at cathode.

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