Q13. What is the 螖G掳鈥� value for t... [FREE SOLUTION]

Chapter 17: Q13. (page 586)

What is the 螖G掳鈥� value for the portion of the citric acid cycle that converts malate and acetyl-CoA to citrate?

Short Answer

Expert verified

The total value of $螖 G^{o'} = - 1.8 鈥� k J 鈥� m o l^{- 1}$ .

Step by step solution

Conversion of malate to citrate

Citrate is formed from malate by malate dehydrogenase and citrate synthase reactions.The conversion of $malate 鈫� citrate$ reactions and their values are as follows:

$M a l a t e + N A D^{+} 鈫� o x a l o a c e t a t e + N A D H + H^{+}; 鈻� G 掳'_{1} = + 29.7 k J m o l e^{- 1}$

(Malate dehydrogenase reaction)

$A c e t y l - C o A + o x a l o a c e t a t e 鈫� c i t r a t e; 鈻� G 掳'_{2} = - 31.5 k J m o l^{- 1}$ (Citrate synthase reaction)

Total △G°'is the sum of △G°'values of malate dehydrogenase and citrate synthase reaction

Total $鈻� G 掳'$ for the conversion of malate to citrate is computed by adding the preceding values of $鈻� G 掳'_{1}$ and $鈻� G 掳'_{2}$ by the following formula:

Total

role="math" localid="1648637329656" $鈻� G 掳' = 鈻� G 掳'_{1} + 鈻� G 掳'_{2} = + 29.7 {kJmol}^{- 1} + (- 31.5 {kJmol}^{- 1}) = - 1.8 {kJmol}^{- 1}$

Therefore, the value of $鈻� G 掳'$ is $- 1.8 {kJmol}^{- 1}$ .

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91影视

What is the 螖G掳鈥� value for the portion of the citric acid cycle that converts malate and acetyl-CoA to citrate?

Short Answer

Step by step solution

Conversion of malate to citrate

Total △G°'is the sum of △G°'values of malate dehydrogenase and citrate synthase reaction

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