A 100 ml culture bottle is filled with LB (Lysogeny broth) which has all the nutrients and plenty of oxygen to support of oxygen to support E. coli growth. By performing serial dilutions and plate count you estimated that there are 5×10^5 cells per ml of culture. Let’s suppose that one bacterial cell uses 15 molecules of glucose per minute.

How much CO2 is produced by the whole 100ml culture over the period of one hour? (Don’t forget that carbon dioxide is produced during glycolysis as well as the Krebs cycle).