Sandbox Reserved 143: Difference between revisions
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Chlorophyll molecules can be found in ancient sediments and can be used to help reconstruct past environments. | |||
<applet load='Image:CL1_model.pdb' size='400' frame='true' align='right' caption='Insert caption here' | |||
scene='Sandbox_Reserved_143/1/1' /> | |||
The | |||
<scene name='Sandbox_Reserved_143/1/2'>structure</scene> | |||
of these biomarkers of past photosynthesis includes information on past growth conditions. | |||
<scene name='Sandbox_Reserved_143/1/3'>Hydrogen</scene> | |||
is incorporated into the molecule during biosynthesis and the isotopic composition of the water within the cell at that time is reflected in the hydrogen isotopic composition of the final molecule. | |||
The ratio of | |||
<scene name='Sandbox_Reserved_143/1/5'>deuterium</scene> | |||
to hydrogen of individual compounds can be determined by gas chromotography-isotope mass spectrometry. | |||