Most of the human body is made up of water, H2O, with cells consisting of 65-90% water by weight. Therefore, it isn't surprising that most of a human body's mass is oxygen. Carbon, the basic unit for organic molecules, comes in second. 99% of the mass of the human body is made up of just six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus.
1. Oxygen (65%)
2. Carbon (18%)
3. Hydrogen (10%)
4. Nitrogen (3%)
5. Calcium (1.5%)
6. Phosphorus (1.0%)
7. Potassium (0.35%)
8. Sulfur (0.25%)
9. Sodium (0.15%)
10. Magnesium (0.05%)
11. Copper, Zinc, Selenium, Molybdenum, Fluorine, Chlorine, Iodine, Manganese, Cobalt, Iron (0.70%)
12. Lithium, Strontium, Aluminum, Silicon, Lead, Vanadium, Arsenic, Bromine (trace amounts)
So yet why can we not make humans ourselfs? What is missing?
2007-08-15 17:43:14 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
You aren't a fan of Full Metal Alchemist, by any chance, are you?
Why in the world would we want to try to make anything biological out ot its constituent elements?!?!
The biological critters themselves seem to have the process down pat on their own. It would be a waste of time and energy to even TRY it.
2007-08-15 19:24:32 · answer #1 · answered by BotanyDave 5 · 0⤊ 0⤋
The cell itself is very complicated. Creating, for instance, DNA would take the right temperature at the precise pressure and pH and salinity and so on in the prescence of enzymes. You cant just put the elements together and create a human. It is far more complicated than that
2007-08-15 20:35:16 · answer #2 · answered by travis g 3 · 0⤊ 0⤋