Question : Many microbial pathogens enter the gut of humans along with food. What are the preventive barriers to protect the body from such pathogens? What type of immunity do you observe in this case?

Question : Many microbial pathogens enter the gut of humans along with

1.	Question : Many microbial pathogens enter the gut of humans along with food. What are the preventive barriers to protect the body from such pathogens? What type of immunity do you observe in this case?
Answer» SOLUTION :Many microbialpathogensenter the gut of humans along with food. The PREVENTIVE barriers to protect the body from such pathogens are as FOLLOWS (i) the mucus coating of the epitheliumlining of the gut HELPS in trapping microbes entering the body. (ii) saliva in the mouth and hydrochloric acidin gastricjuice secretedby stomach prevent MICROBIAL growth. This type of immunityis innate immunity. It is present from birth andis inheritedfrom parents. The innate immunityremains throughoutlife.