Which of the following is an essential role played by large intestine bacteria?

Which of the following is an essential role played by large intestine bacteria? a. produce gas b. absorb bilirubin c. synthesize vitamin k and b-complex vitamins d. synthesize vitamins c and d


An essential role played by large intestine bacteria is to synthesize vitamin K and B-complex vitamins. 

A. Synthesize Vitamin K and B-complex vitamins.


Intestinal bacteria are extremely important in the mainteinance of a healthy intestinal function and overall health as they carry an essential role in the synthesis of compounds such as vitamins K (K2) and B.

Vitamin K plays a crucial role in the production of blood clotting factors. According to research, this vitamin provides multiple health advantages such as the prevention of calcium accumulation, which is crucial in regard to heart health; while it also prevents osteoporosis.

Vitamin B-complex (eight different B vitamins), convert food into energy. Each type of vitamin has an essential role in human health. For instance, Vitamin B-3 maintains a healthy skin, digestion, and nerves; while Vitamin B-6 assists in the production of new red blood cells.

Producing Vitamin K and Vitamin B.


The bacteria that is found in our intestines play a crucial role in the digestive system by further digesting the food while it is going through the large intestine but their ability to produce vitamin K and vitamin B is one most the most important roles they play for our bodies.

I hope this answer helps.

The correct answer is: synthesize vitamin K and B-complex vitamins.


The large intestine, an important region of the gastrointestinal tract, is populated with bacteria that maintain our bodies healthy. The term used to describe these organisms that live in the digestive tract is gut microbiota.

The relationship between humans and the gut microbiota is not only non-harmful but also beneficial to humans. Bacteria ferment dietary fibers into short-chain fatty acids for us to absorb it. Gut microbiota also plays a crucial role in synthesizing vitamin B and vitamin K, as well as metabolizing sterols and bile acids. These bacteria act much like an endocrine system that regulates intestinal function with the use of short-chain fatty acids, as if they were hormones.

Vitamin K is important for blood clotting, while vitamin B intervenes in cellular metabolism.

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