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Which one of the following statements best describes the action of a detergent?

A. It removes grease but does not kill pathogenic bacteria.
B. It kills all pathogenic bacteria.
C. It sanitizes all work surfaces.
D. It reduces grease and kills all pathogenic bacteria.

Answer :

The action of a detergent is: a. it removes grease but does not kill all pathogenic bacteria.

Detergents are compounds that are specifically designed to break up and remove grease, oil, dirt, and other organic materials from surfaces. They achieve this by reducing the surface tension of water, allowing it to penetrate and dissolve these substances more effectively than water alone.

  • When you use a detergent to clean a surface, it surrounds and encapsulates the grease and dirt particles, lifting them away from the surface. This action makes it easier to rinse away the dirt and grime with water.
  • However, it's important to note that detergents themselves typically do not have properties that directly kill bacteria. While they can help to physically remove bacteria from surfaces by loosening them from the surface, they do not have the same antimicrobial properties as disinfectants or sanitizers.
  • Disinfectants and sanitizers are specifically formulated to kill or inhibit the growth of pathogenic bacteria and other microorganisms. They contain active ingredients, such as antimicrobial agents like bleach, alcohol, or quaternary ammonium compounds, which target and destroy bacteria on surfaces.

Therefore, while detergents are effective for cleaning surfaces and removing organic matter, they are not sufficient on their own for eliminating pathogenic bacteria. For complete bacterial disinfection or sanitization, it's necessary to use additional agents or processes specifically designed for that purpose.

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Rewritten by : Jeany