Question:
In TCA cycle substrate level phosphorylation takes place during the conversion of
In TCA cycle substrate level phosphorylation takes place during the conversion of
Updated On: Jun 14, 2022
- oxaloacetic acid to citric acid
- succinyl Co-A to succinic acid
- succinic acid to fumaric acid
- fumaric acid to malic acid
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The Correct Option is B
Solution and Explanation
Tricarboxylic acid cycle or citric acid cycle or Krebs cycle takes place in matrix of mitochondria. Acetyl coenzyme-A is connecting link between cycle and EMP pathway, while oxaloacetate is acceptor molecule. Substrate level phosphorylation takes place during the conversion of succinyl Co-A to succinic acid,
Succinyl Co-A + ADP + $ H_{3}PO_{4} \xrightarrow[Co-A\, \text{synthetase}]{\text{Succinyl}} $ succinic acid + ATP + Co-A
Succinyl Co-A + ADP + $ H_{3}PO_{4} \xrightarrow[Co-A\, \text{synthetase}]{\text{Succinyl}} $ succinic acid + ATP + Co-A
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Concepts Used:
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\[C_6H_{12}O_6 + 6O_2 → 6CO_2 + 6H_2O + \text{Energy}\]