you inoculate an LB tube with an aerobic bacterium and incub

you inoculate an LB tube with an aerobic bacterium and incubate it for 24 hours. what kind of growth do you expect to see and why?

Solution

If a liquid media in a tube is inoculated with aerobic bacteria and incubated for 24hrs, the growth can be seen as a surface pellicle. Bacteria grows on the surface of the liquid media. This is because it is the area where oxygen is available for the bacteria to utilize. Whereas anaerobic bacteria grow at the bottom of the tube where air is absent.