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:

Function of Behavior

The reason or purpose behind a specific behavior, often understood in the context of what the behavior accomplishes for the individual.

Introspection

The examination of one’s own mental and emotional processes, reflecting on thoughts, feelings, and motives.

Conscious Experience

The subjective state of being aware of one’s thoughts, feelings, and surroundings, often explored in psychology and philosophy.

Unconscious Wishes

Desires and thoughts that reside in the unconscious mind, influencing behavior and feelings without one's awareness.