Which of the Following Statements Is True About the Decolorizing

question 26

Multiple Choice

Which of the following statements is true about the decolorizing step for the acid- fast stain?

• A) The decolorizing step is the differentiating step.
• B) Because acid- fast bacteria have a waxy cell wall that resists decolorization by the acetone- alcohol rinse, they appear a deep blue at the end of the procedure.
• C) Over- decolorizing can lead to false- positive results.
• D) Non- acid- fast bacteria appear bright pink- red at the end of the procedure.
• E) Acetone- alcohol solution is the decolorizing agent.

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