2007-06-08 11:33:26 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Biology
It depends on what exactly you're measuring.
By weight, the human brain is approximately 75% water. By molecule count, the human brain is approximately 99% water (both slightly higher than the rest of the body). The individual molecules are light, but there's LOTS of them.
The flipside would be DNA. It makes up about 0.1% of the weight, but only 0.000 000 000 03 % of the molecule count. Only a few molecules, but they're ridiculously big.
2007-06-08 12:25:12 · answer #1 · answered by Doctor Why 7 · 2⤊ 0⤋
Percentage Of Water In Brain
2016-11-04 22:15:24 · answer #2 · answered by Anonymous · 0⤊ 0⤋
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Now let’s take a closer look at the importance of water in our own bodies. As babies we are approximately 75 to 80% water and as we grow older this percentage decreases until the percentage is reduced to approximately 60 to 65% for men and 50 to 60% for women. The human brain is about 85% water and our bones are between 10 to 15% water. The chemical structure of water H2O and both the hydrogen and oxygen have great importance as life giving properties and a preserving force to our systems. Women have a higher percentage of adipose tissue than men, giving them a lower percentage of water.
2016-04-03 00:20:53 · answer #3 · answered by Marilyn 4 · 0⤊ 0⤋
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RE:
What percentage of the human brain is made up of water?
2015-08-18 17:16:04 · answer #4 · answered by Tarah 1 · 0⤊ 0⤋
The human body is 75% water
2016-03-16 21:06:02 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Hi. I belive that number has to be 12.23224% (as of 2006 studies at the biologial institution at Princeton University.)
2007-06-08 11:46:39 · answer #6 · answered by Anonymous · 0⤊ 0⤋
85 percent
2014-10-28 04:14:12 · answer #7 · answered by Bhaviarora 2 · 0⤊ 0⤋