1. Eviane Leidig Katherine Rodriguez Jonathan Kim Brit Lim APES Dr. E Period 5

2. Atmosphere dust particles; no a significant role because solid on Earth Lithosphere: ranks 11th with average content 0.12%. Amount of phosphorus

3. Facts continued Hydrosphere: kept in soil and rocks Biosphere: used to build DNA, RNA, and ATP Its gross abundance on the surface of the earth is 0.10-0.12%

4. Biological importance Element fundamental to life structural and functional component of all organisms. Found universally in such vital cell constituents as nucleic acids, nucleotides, phosphoproteins, and phospholipids. Present in many types of bacteria and yeasts.

5. The Cycle

6. Phosphorus Informational Comic

7. Phosphorous Cycle

8. Molecular Shape of Phosphorous

9. Works Cited http://www.lenntech.com/phosphorus-cycle.htm http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VB2- 3XR2V43- 1&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acc t=C000050221&_version=1&_urlVersion=0&_userid=10&md5=08b4 9db4be0f0907a80f2c5408a6886d http://www.princeton.edu/~chm333/2002/spring/Biochemical/phosphorus/ phosphorus_cycle.htm http://www.lenntech.com/phosphorus-cycle.htm http://www.ist-phosphorus.eu/pic/phosphorus_testbed.jpg http://z.about.com/d/chemistry/1/0/R/e/phosphoruspentoxide.jpg