cause the mouth of the people are too big.
Electrical apparatus for kills microorganisms in the human body.by Hasam
Any food (or thing) that isn't naturally anti-microbial or sterilized will contain microorganisms. The human body is a collection of microorganisms; you could not live, or at least would experience greatly diminished life without the help of several species of them.
Human muscle cells undergo lactic acid fermentation in low oxygen conditions.
human bodies
Fermentation is a medical term used to describe the chemical breakdown of a substance. For example, in the human body, bacteria and yeast will breakdown with sugars.
Fermentation is simply anaerobic cellular respiration where an organic compound is used as an electron acceptor instead of using oxygen. Consequently, lots of types of cells can utilize fermentation. There are examples of both prokaryotes and eukaryotes that are capable of anaerobic respiration. The most common example of fermentation is in the yeast cell, which produces the alcohol found in beer. Another example is the human muscle cell, which produces lactic acid through fermentation when there is not enough oxygen present to continue cellular respiration (such as after a long jog).
lactic acid
Yes, It is part of the digestive system and it produces important enzymes and hormones which help break down foods.
The immune system
normal flora
commensals
Alcoholic Fermentation does not occur in human bodies but rather in plant cells when they do not receive adequate amounts of the necessary amounts of nutrients and minerals. Lactic fermentation however occurs in human cells located in the cytoplasm after glycolysis.