(1) The main solvent in the body The metabolic process of various nutrients in animals is inseparable from water.
(2) The specific heat of water with adjustable body temperature is relatively large. When too much heat is generated in the body, it will be absorbed by water. Through body temperature exchange and blood circulation, the body temperature will not rise through the skin or exhalation. At the same time, evaporation needs a lot of heat, and when the weather is hot, it can be cooled by sweating and breathing.
(3) Keeping the shape of the carcass Water can keep the normal shape, hardness and elasticity of cells in animals, so it can keep the shape of the carcass.
Extended data:
Water is an important substance to maintain the balance of body fluids. Body fluid refers to the liquid composed of water and various substances (such as inorganic salts, glucose, amino acids, protein, etc.) existing in animals. ) Soluble in water. It exists widely inside and outside cells and constitutes the internal environment of animals. Water can dilute the contents of cells and body fluids, make substances move relatively freely in cells, body fluids and digestive tract, maintain the ion balance of minerals in the body, and maintain the normal metabolism of substances in the body.
Water not only plays an important role in expelling a large number of indigestible substances in the digestive tract, but also plays an important role in expelling metabolites through urine and sweat.
Baidu encyclopedia-water