A Device That Removes Wastes and Adds Fresh Medium to Bacterial

question 21

Multiple Choice

A device that removes wastes and adds fresh medium to bacterial cultures in order to prolong the log phase of a culture is called a(n)

• A) Coulter counter.
• B) cytometer.
• C) spectrophotometer.
• D) pellicle.
• E) chemostat.

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Definitions:

Photograph

An image created by capturing light on a light-sensitive surface, either digitally or on film.

Patent

The exclusive right granted to the inventor of something new and different to produce the invention for a period of 20 years in return for the disclosure of the invention to the public.

Radar

A detection system that uses radio waves to determine the range, angle, or velocity of objects.

Fluffy Dice

A pair of large, soft dice often hung on the rearview mirror of a car as a decoration.