Which of the Following Normally Occurs Regardless of Whether or Not

Question

Which of the following normally occurs regardless of whether or not oxygen (O₂)is present?
A) glycolysis
B) fermentation
C) oxidation of pyruvate to acetyl CoA
D) citric acid cycle
E) oxidative phosphorylation (chemiosmosis)

Accepted Answer

Glycolysis is an anaerobic process that occurs in the cytoplasm and does not require oxygen. It is the first step in cellular respiration and occurs regardless of whether or not oxygen is present.