Question

describe what happened as you observed the broth tubes from your serial dilution over time. did you observe any evidence of bacterial growth during the incubation period

ecoli in nutrient broth tubes. does the turbidity incresase after 48 hours or will it stay the same as it was at 24 hours

Answer 1

When we do the serial dilution, we can observe that number of turbidity or the number of particles is gradually decreasing and the chances of the number of single-cell colonies are increasing.

When we incubate the Petri dishes ofter pour plating or spread plating of the serially diluted liquid on the gelling media, the number of single colonies of microorganisms should be seen.

Turbidity must be increased after 48 hours if we incubate that culture after 24 hours also and also have the chances of increasing of the number of unrecognized cells.