Question

Choose the correct answers from the alternatives given :
Select the true statement

• A. glycolysis produces equal numbers of ATP molecules regardless of the presence or absence of oxygen
• B. more ATP molecules are produced per molecule of glucose when glycolysis occurs in aerobic conditions
• C. more ATP molecules are produced per molecule of glucose wvhen glycolysis occurs in anaerobic conditions
• D. none of the above are true

Answer 1

The correct option is A glycolysis produces equal numbers of ATP molecules regardless of the presence or absence of oxygen

• As the reaction of glycolysis takes place in the cytoplasm of cell where it can proceed in the absence of oxygen molecule.
• It does not require the presence of oxygen of to proceed further.
• It will produce 4 ATP molecules and use 2 molecules of ATP, which gives the cell the net gain of 2 ATP at the end of the glycolysis process.
• Presence of oxygen or absence of oxygen does not hinder the process of glycolysis and prodution of ATP by glycolysis.
• Therefore the answere option 'glycolysis produces equal numbers of ATP molecules regardless of the presence or absence of oxygen' is true.