E aerogenes Bacteria Clear zone? Result (+/-) A. Indicate the location of the bacterial growth and draw any clear zones that are present. Make a drawing of your results the circle below. It is helpful to hold it up to the light so you can detect the clear zones. Casein Hydrolysis Observe your casein plate.
coli Serratia marcescens Bacteria Liquid or solid Result (+/-) E. Gelatin Hydrolysis Observe the gelatin deeps. E.Tryptophan Hydrolysis Each student: 1 tryptone broth (Note: this medium contains tryptophan) Instructions: Inoculate the medium with your chosen bacteria.