2007-01-18 03:43:29 · 4 answers · asked by c2 2 in Science & Mathematics ➔ Biology
Because adult men are about 60% water.
2007-01-18 03:52:46 · answer #1 · answered by sexylatinguy23 4 · 0⤊ 1⤋
1. Water is a medium where chemical/metabolic reactions take place. It is also needed for hydrolytic reactions.
2. Water is a component of certain important proteins such as cytoplasm.
3. Water is a lubricant for our joints.
4. It's a major component of blood plasma - and thus is needed for transport of substances in the body.
2007-01-18 13:54:48 · answer #2 · answered by rfedrocks 3 · 0⤊ 0⤋
Water is very important to all living things.
Up to 60 percent of the human body is water. The cells in our bodies are full of water. The excellent ability of water to dissolve so many substances allows our cells to use valuable nutrients, minerals, and chemicals in biological processes.
Lot of cellular activities take place in water. About 83 percent of our blood is water, which helps digest our food, transport waste, and control body temperature.
Water's "stickiness" (from surface tension) plays a part in our body's ability to transport these materials all through ourselves.
The carbohydrates and proteins that our bodies use as food are metabolized and transported by water in the bloodstream. No less important is the ability of water to transport waste material out of our bodies.
2007-01-18 12:16:10 · answer #3 · answered by Ivy 3 · 0⤊ 0⤋
because all metabolic reactions take place in watery environment
because water has some special properties like polarity small molecule.high specific heat capacity etc....
2007-01-18 12:01:16 · answer #4 · answered by T-bag 3 · 0⤊ 0⤋