Question

1. As you’re sitting watching your goldfish in their tank, you notice a thick biofilm on the glass walls of the aquarium, and decide you want to study it. You find that the biofilm started with Pseudomonas bacteria, and grew from there.

A. The water looks pretty clear, but you know there must be pseudomonas and other bacteria in the tank.Explain two ways by which you could titer the planktonic bacteria in the water

B. you try to add a metabolic inhibitor to kill the bacteria in the biofilm, but it doesnt work. Explain how some cells in the biofilm can avoid being killed by a metabolic inhibitor.

Answer 1