Fundamentals Of Microbiology 10th Edition by Jeffrey Pommerville

Exercise 27

You have two flasks with broth media. One contains a species of cyanobacteria. The other flask contains E. coli. Both flasks are sealed and incubated under optimal growth conditions for 2 days. Assuming the cell volume and metabolic rate of the bacterial cells is identical in each flask, why would the carbon dioxide concentration be higher in the E. coli flask than in the cyanobacteria flask after the 2-day incubation