Which of the Following Methods of Measuring Cell Density Would

question 69

Multiple Choice

Which of the following methods of measuring cell density would be the best to choose when you know that you do not have a lot of bacteria present in your sample?

• A) A Petroff-Hausser chamber because you are visually counting bacteria.
• B) Spectrophotometry because it is sensitive to low bacterial numbers.
• C) Dilution plating because you will be able to count between 30-300 cells on a plate.
• D) Filtration because the number of bacteria may be concentrated on the filter prior to plating.

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Definitions:

Temporal Lobe

A region of the cerebral cortex responsible for processing auditory information, as well as a role in memory and emotion.

Central Deafness

An uncommon form of hearing loss that results from damage to or dysfunction in the central auditory pathways of the brain.

Otosclerosis

A condition in the ear where abnormal bone growth around the stapes bone can lead to hearing loss.

Tactile Perception

The sense and understanding of the world through touch.