Question

Which of the following is not correct about the Krebs cycle?

• A. It starts with a six-carbon compound.
• B. It occurs in mitochondria.
• C. The intermediate compound which links glycolysis with the Krebs cycle is malic acid.
• D. It is also called the citric acid cycle.

Answer 1

The correct option is C

The intermediate compound which links glycolysis with the Krebs cycle is malic acid.

The Krebs cycle is also called the citric acid cycle after one of its participating compounds, citrate. It takes place in the mitochondrial matrix and begins with a six-carbon compound, citric acid. The intermediate compound which links glycolysis with the Krebs cycle is pyruvic acid which undergoes oxidative decarboxylation and forms active acetate.