What You Didn’t Know About Water is discussed in this article. We hope you find the article informative and helpful to your research.
Water is of the most important compounds on earth, composed of the two elements hydrogen and oxygen in a ratio of 2:1.
As a constituent of all cells, animals, and vegetables, of all fluids, plant sap, blood, and lymph, water constitutes the greatest percentage weight of all living matter.
Approximately 60 percent of the body weight of humans is water. This represents 80 pints of water in an adult. Most vegetable matter contains 60 percent to 95 percent water.
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For instance, lettuces contain 95 percent, green beans 89 percent, and bananas 75 percent. Plants, except succulents, die quickly if left without water for a few days or weeks.
It will surprise you that people die quickly from a total lack of water than from a lack of food. Thus this article will focus mainly on the essentiality of water and other important facts about Water.
Water is a solvent for many substances. The series of chemical actions that take place during metabolism is dependent on water for the transference of materials in solution to and from the various tissues.
The soluble end products of digestion are carried in the blood which is about 92 percent of water by the circulatory system to the tissues of the body.
Hence, those materials needed are extracted and used and the waste products are collected. Water plays an important part in the excretion of waste products from the body.
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The main paths of excretion are through the kidneys, the skin, the lungs, and the bowel. Urea, the end product of the metabolism of proteins, is removed in the urine, a fluid excreted by the kidneys.
The waste products from the alimentary tract are excreted as feces, those from the skin in perspiration, and those from the lungs in expired air. These excretions all contain some water.
The evaporation of water in the form of perspiration from the surface of the body helps to maintain the body temperature at a constant level.
During hard physical works, strenuous exercise, fevers, and in hot dry climates, a lot of water is lost from the body in perspiration.
Some of the chemical reactions taking place in the body require water as a medium. Water is used as a building material in the body as it is a constituent of every cell.
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Hence, by far the greater percentage of water in the diet is taken in the form of fluids which include tea, coffee, soup, fruit drinks, and milk which contains approximately 86 percent water.
In addition, most fruits and vegetables contain well over 60 percent of water and some as much as 90 percent. These contribute to the total intake of water.
The proper functioning of the digestive, circulatory, and excretory systems depends on an adequate daily intake of water.
The amount needed will depend on conditions of climate, health, physical activity, and many other factors. Thirst is a good criterion of need.
The average adult needs obtained from solids are usually one to two pints like bread which we consider dry food contains 34 percent water but the main supply will be from fluids.
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Conclusively, the largest amount of water is excreted from the body in the urine, but perspiration, water vapor in expired air, and water in the feces account for an additional small percentage.