Question

In which of the following, putrefying bacteria is present

• A. Intestine
• B. Colon
• C. Stomach
• D. Liver

Answer 1

The correct option is B

Colon

The correct option is B:

Explanation of the correct option:

1. Putrefaction is a biological process in which undigested proteins are decomposed or fermented by micro bacteria within the colon.
2. Because the synthesis of short chain fatty acids like butyrate, fibre and resistant starches that enter our colon during carbohydrate fermentation have favorable effects, however, protein fermentation has negative effects.
3. Protein fermentation takes place mostly in the lower part of the colon and produces potentially harmful metabolites.

Explanation of the incorrect option:

Option A:

Escherichia coli are found in intestine.

Option C:

Helicobacter pylori is found in stomach that is responsible for chronic gastritis and plays important roles in peptic ulcer disease.

Option D:

There are no bacteria found in liver.

Final answer: Putrefying bacteria is present in Colon.