Question

which of the following terms describes bacterial growth occurring mostly at the top of a liquid broth media?
a pellicle
b sediment
c turbid
question 7 of 8

Explanation:

• A pellicle is a thin layer of bacterial growth that forms at the surface (top) of liquid broth media, as aerobic bacteria often congregate here to access oxygen.
• Sediment refers to bacterial growth that sinks to the bottom of the broth.
• Turbid describes a cloudy appearance from bacteria dispersed throughout the entire broth.

Answer:

A. pellicle