Culturing Microorganisms

ambient acidity

Temperature, osmolarity, ferrous iron ion concentration, nutrition availability, the quality of materials used to make biofilms, light, and ________ are all environmental factors that impact pellicles formation.

Aseptic procedures

________ are used in laboratories to limit the entry of pollutants or germs into the solution.

pellicle

A(n) ________ is a thin transparent bacterial membrane that forms on the surface of the broth when it comes into contact with air, reducing contamination and allowing the bacteria to inhabit a healthy biological niche.