Question

1. Following his lunch of a peanut butter sandwich, two cookies and glass of 2% milk on a cloudy, 75ºF June day, a 4-yearold boy consumes several fist-sized portions of a freshly prepared “mud pie” created by his 2-year-old sister from garden soil, grass, and water. Despite the presence of several species of bacteria within the mud pie, this boy’s intestines were not colonized by the ingested bacteria. The most likely explanation for this lack of colonization is:
2. A 10-year-old male patient is diagnosed with inflammation due to an acute bacterial infection. Which one of the following is not a characteristic of inflammation response against bacterial infection?
3. The relative level of specific IgM antibodies can be of diagnostic significance because:

Answer 1

i. Despite the presence of several species of bacteria within the mud pie, this boy’s intestines were not colonized by the ingested bacteria. The most likely explanation for this lack of colonization is that our stomach lining has got this unique capability to secretes hydrochloric acid to a significant level that is responsible for making the protein-digesting enzymes to work and at the same time the strong acid kills most of the harmful bacteria that accidentally got into our stomach before they reach the intestines.

ii. The question is strictly multiple choice. Please provide options.

iii. The relative level of specific IgM antibodies can be of diagnostic significance because relatively high levels of IgM often correlate with first recent exposure to the inducing agent.