Which of the following sequence is correct in Krebs cycle?

Oxaloacetic acid, malic acid, citric acid

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Malic acid, citric acid, oxaloacetic acid

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Fumaric acid, malic acid, oxaloacetic acid

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All of the above

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Solution

The correct option is C Fumaric acid, malic acid, oxaloacetic acid
Fumarate, malate or oxaloacetate are the intermediates of Krebs cycle, where succinate gets converted to fumarate, fumarate gets converted to malate and malate gets converted to oxaloacetate. So, the correct sequence in Krebs cycle is fumarate - malate - oxaloacetic acid.
Thus, the correct answer is option C.

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