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The cells of your blood, and the bacteria in your gut.
Yes
Bacteria in the gut play a major role in digestion. In some cases, the bacteria consume the food and transform it into a form the body can digest. This happens with the digestion of celery.
bacteria
Gut bacteria are, well, bacteria found in the gut. Bacteria are microorganisms made of a single cell; more information on them can be found in the external links provided here. The gut is usually considered any part of the gastrointestinal (GI) tract, from mouth to anus.All animals have gut bacteria. This is a normal and completely healthy condition. These normal gut bacteria are considered to make up the normal gut flora or gut microbiota of an individual.Different parts of the GI tract contain different bacteria. This has to do with the environment found in the different parts of the GI tract. For example, the stomach provides an acidic environment, making it difficult for most bacteria to survive. The colon, on the other hand, provides a suitable environment for anaerobic organisms like Bacteroides fragilis and Entereschia coli (E. coli).
how does bacteria destroy the mucus protecting the gut wall and how did it let acid reach the gut wall and cause ulcers
Dexamphetamine has a " flushing" effect that include excreting more gut bacteria than normal. Gut bacteria helps break down some of the odor producing chemicals, and with fewer gut bacteria some of these chemicals may get into the blood stream, and thus into the sweat.
The bacteria absorb nutrients in the gut from digested food - the human benefits from the production of the vitamin.
Any bacteria living inside of the body, i.e. those in the gut are anaerobic. After death they quickly spread out of the gut and colonize the rest of the body. Without any air or oxygen, they take big hydrocarbons, and derive energy by making them into single carbon elements, methane, which the bacteria release. The methane gas released by the bacteria which will cause the body to swell up and become buoyant.
There is not any scientific information that says that they do.
There are some good bacteria like "gut bacteria" in your immune system which help fight illness.
Bacteria in the gut break down food and make vitamin K.