Answered

Check all that apply.

The purpose of the bacterial examination of water lab is:

- To perform a confirmation test to prove the presence of E. coli.
- To determine if fecal contamination is present in the water.
- To determine if hemolytic cocci are in water samples.
- To see if pathogenic protists are in the water.



Answer :

Final answer:

The purpose of testing water for bacteria like E. coli is to confirm fecal contamination and assess the potential presence of harmful pathogens.


Explanation:

The purpose of the bacterial examination of water lab is:

  • to perform a confirmation test to prove the presence of E. coli.
  • to determine if fecal contamination is present in the water.

Coliform bacteria, such as E. coli, are commonly used as indicator species to detect fecal contamination, which indicates the potential presence of dangerous pathogens like Salmonella.


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