Normal flora are the organisms that typically reside on your body and play a crucial role in protecting against infection by pathogens. They do this by occupying available niches on the body, preventing colonization by potential pathogens, and by producing substances that inhibit the growth of pathogens. However, if the balance of normal flora is disrupted, it can sometimes enhance infection by pathogens.

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Normal Flora

Question 19

Multiple Choice

Normal flora

A) are the organisms that typically reside on your body.
B) protect against infection by pathogens.
C) enhance infection by pathogens.
D) play no role in affecting pathogen growth.
E) are the organisms that typically reside on your body AND protect against infection by pathogens.

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