很好的问题,世界上有一个很神奇的东西,叫做baidu,哈哈<img smilieid="361" src="http://www.kaiyuan.de/forum/images/smilies/monkey/monkey89.gif" border="0"><img smilieid="361" src="http://www.kaiyuan.de/forum/images/smilies/monkey/monkey89.gif" border="0"><br><br>1)氧元素占65%
<br>2)碳元素占18%
<br>3)氢元素占10%
<br>4)氮元素占3%
<br>5)钙元素占1.5%
<br>6)磷元素占1.0%
<br>7)其他元素占1.5%
<br>这是生物细胞中的元素含量,不管动物,还是植物,或微生物,都和以上数值及元素种类近似或相同。
<br>再给你多说一些别的,
<br>人体内水的含量:
<br>1)脑部:70%-85%
<br>2)血浆:91%-92%
<br>3)骨质:44%-55%
<br>4)肌肉:72%-80%
<br>地球中各元素的含量:
<br>1)氧:48.60%
<br>2)硅:26.30%
<br>3)铝:7.73%
<br>4)铁:4.75%
<br>5)钙:3.45%
<br>6)钠:2.74%
<br>7)钾:2.47%
<br>8)镁:2.00%
<br>9)氢:0.76%
<br>10)其他元素:1.20%<br><img smilieid="332" src="http://www.kaiyuan.de/forum/images/smilies/monkey/monkey62.gif" border="0"><img smilieid="332" src="http://www.kaiyuan.de/forum/images/smilies/monkey/monkey62.gif" border="0"><img smilieid="332" src="http://www.kaiyuan.de/forum/images/smilies/monkey/monkey62.gif" border="0"><img smilieid="332" src="http://www.kaiyuan.de/forum/images/smilies/monkey/monkey62.gif" border="0"><img smilieid="332" src="http://www.kaiyuan.de/forum/images/smilies/monkey/monkey62.gif" border="0"><br> |