Which of the Following Statements Are True of the Stages

Which of the following statements are true of the stages of cell respiration (Select all that apply) ?

A) Glycolysis takes place in the mitochondria.
B) The enzymes for the Krebs citric acid cycle are in the cytoplasm of the cell.
C) The cytochromes of the electron transport system are in the mitochondria.
D) Oxygen is required for the Krebs cycle,but not for glycolysis.
E) Oxygen is required for the electron transport chain,but not for the Krebs cycle.
F) Oxygen is required for the Krebs cycle but not for the electron transport chain or for glycolysis.