Question

Escherichia coli in human intestine helps to synthesize

• A. Vitamin B and D
• B. Vitamin B and C
• C. Vitamin A and K
• D. Vitamin B and K

Answer 1

The correct option is D Vitamin B and K

E.coli is the bacteria found in the human intestine. It synthesises vitamin B${}_1$, B${}_2$ and K. They derive nutrients from the undigested food passing through caecum and help in better absorption of food. The deficiencies of these vitamins cause many diseases like beriberi or pernicious anaemia.

So, the correct answer is option D.