Question

multiple select question
select all that apply
enriched media are useful for which of the following? more than one answer may be correct.

• isolating a microbes from a complex mixture like saliva
• growing pathogens that are present in low numbers
• the growth of fastidious organisms
• preserving specimens during transport to the lab

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Explanation:

• Enriched media contains additional nutrients to support the growth of organisms that need more than basic media.
• For "Isolating a microbes from a complex mixture like saliva": Selective or differential media are more for isolation, but enriched media can help grow specific microbes from complex mixtures to aid isolation (though not the primary isolation tool, but still useful in the process of culturing for isolation).
• "Growing pathogens that are present in low numbers": Enriched media provides nutrients to help these low - number pathogens multiply.
• "The growth of fastidious organisms": Fastidious organisms have complex nutritional requirements, and enriched media is designed to meet these, so it's useful for their growth.
• "Preserving specimens during transport to the lab": Transport media (not enriched media) is used for preservation during transport. So this is incorrect.

Answer:

• Isolating a microbes from a complex mixture like saliva
• growing pathogens that are present in low numbers
• the growth of fastidious organisms