Encyclopedia > 2100 BC

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22nd century BC

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(23rd century BC - 22nd century BC - 21st century BC - other centuries)

(4th millennium BC - 3rd millennium BC - 2nd millennium BC)


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Photosynthesis

... pigment molecules) and excites one of its electrons, which is then captured by a primary acceptor protein. The chlorophyll's electron can follow either of two ...

 
 
 
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