Krebs' cycle begins with the reaction

  • A
    Citric acid + acetyl Co-$A$
  • B
    Oxaloacetic acid + pyruvic acid
  • C
    Oxaloacetic acid + citric acid
  • D
    Oxaloacetic acid + acetyl Co-$A$

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Substrate level phosphorylation in $TCA$ occurs when

Where does the Krebs cycle take place?

Acetyl $Co-A$ binds to oxaloacetic acid to form

In which of the following organisms does the Krebs cycle not occur in the mitochondria?

The enzyme mediating the reactions of the $Krebs$ cycle during cellular respiration in animals is found in:

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