Where does the Krebs cycle take place?

Question

Responses

It takes place in the mitochondrion because it is an aerobic process, which means it requires oxygen.
It takes place in the mitochondrion because it is an aerobic process, which means it requires oxygen.

It takes place in the mitochondrion because it is an anaerobic process, which means it does not require oxygen.
It takes place in the mitochondrion because it is an anaerobic process, which means it does not require oxygen.

It takes place outside of the mitochondrion because it is an aerobic process, which means it requires oxygen.
It takes place outside of the mitochondrion because it is an aerobic process, which means it requires oxygen.

It takes place outside of the mitochondrion because it is an anaerobic process, which means it does not require oxygen.

Answer 1

The correct response is:

It takes place in the mitochondrion because it is an aerobic process, which means it requires oxygen.

The Krebs cycle (also known as the citric acid cycle or TCA cycle) occurs in the mitochondrial matrix and is part of cellular respiration, which involves the oxidation of acetyl-CoA to generate energy. Although the cycle itself does not directly require oxygen, it is part of a metabolic pathway that ultimately depends on the presence of oxygen to sustain the overall process of aerobic respiration.