Why Is Bacillus Stearothermophilus Useful as an Indicator of Sterility

question 63

Multiple Choice

Why is Bacillus stearothermophilus useful as an indicator of sterility?

• A) It is a very common contaminant.
• B) Only incineration will destroy it.
• C) It has a cell wall containing a waxy compound which protects it from drying and aqueous disinfectants.
• D) It forms cysts which resist a wide range of disinfectant methods.
• E) It forms endospores, among the most hardy of microbial contaminants.

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Definitions:

Average Cash Balance

The mean amount of cash held by a company over a specific period of time.

Weighted Average Delay

The average time delayed, taking into account the importance or weight of each component being delayed.

Collection Delay

The amount of time it takes for a business to receive the payment after it has issued an invoice.

Average Amount

The mean value obtained by dividing the sum of all values by the number of values.