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Phosphorus Cycle http://en.wikipedia.org/wiki/Phosphorus

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Page 1: Phosphorus Cycle

Phosphorus Cycle

http://en.wikipedia.org/wiki/Phosphorus

http://en.wikipedia.org/wiki/File:PhosphComby.jpg
Page 2: Phosphorus Cycle

Phosphorus in the Animal Kingdom

• Required in every cell in the human body

• Most phosphorus is in the form of phosphate PO4

• 85% of the phosphorus in the body is in bone in the form of Calcium Phosphate

• Cell membranes have the phospholipid bi-layer

• DNA and RNA have phosphate as one of the three components of the nucleotide

http://www.biologycorner.com/resources/lipidbilayer.gif

http://publications.nigms.nih.gov/thenewgenetics/images/ch1_nucleotide.jpg

Page 3: Phosphorus Cycle

Remember• All living things are made up of cells (The Cell

Theory)• DNA is found in all cells as the genetic material• ATP has three phosphate groups and powers

cells• No phosphate? No DNA, no power.

http://leavingbio.net/ENERGY%20FOR%20LIFE_files/image002.gif

Page 4: Phosphorus Cycle

Phosphorus• Phosphorus is

unique in that it does not enter the atmosphere, whereas carbon, nitrogen and oxygen do cycle through the atmosphere in the gaseous state.

https://bioh.wikispaces.com/file/view/36-17-PhosphorusCycle-L.gif/31445793/36-17-PhosphorusCycle-L.gif

Page 5: Phosphorus Cycle

Phosphorus Cycle1) Phosphate is often mined

from sedimentary rock or collected from guano

2) It is added to crops as a fertilizer or added to animal feed as a supplement

3) Once in the producers, phosphate cycles through the food web although it never exists in the gaseous state

http://www.lesco.com/images/roots_flat.jpg http://www.lesco.com/images/roots_flat.jpg

Page 6: Phosphorus Cycle

Click

Reminder of the Carbon Cycle

http://www.visionlearning.com/library/modules/mid95/Image/VLObject-2637-031218011217.jpg
Page 7: Phosphorus Cycle

Information sources for phosphate information:

http://lpi.oregonstate.edu/infocenter/minerals/phosphorus/


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