When Practicing Aseptic Culturing Techniques, It Is Important to Keep

question 9

Multiple Choice

When practicing aseptic culturing techniques, it is important to keep all of the following in mind except

• A) the media used to grow the specimen is sterile.
• B) as long as nothing unintended touches the media, there will be no contamination.
• C) all of the instruments and lab ware that directly touch the specimen is sterile.
• D) gloves and other protecting clothing may be required depending on the specimen being used.
• E) surrounding surfaces are decontaminated before and after handling cultures.

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Definitions:

Ciliary Body

A structure in the eye that includes the ciliary muscle, which controls the shape of the lens, and the ciliary epithelium, which produces the aqueous humor.

Lysozyme

An enzyme found in saliva, tears, and other secretions, capable of breaking down bacterial cell walls to fight infection.

Bony Labyrinth

A complex system of passages and cavities within the temporal bone of the skull, important for hearing and balance.

Endolymph

A fluid within the membranous labyrinth of the inner ear that plays an essential role in the transduction of sound vibrations to neural signals.