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1622

Centuries: 16th century - 17th century - 18th century

Decades: 1570s 1580s 1590s 1600s 1610s - 1620s - 1630s - 1640s 1650s 1660s 1670s

Years: 1617 1618 1619 1620 1621 - 1622 - 1623 1624 1625 1626 1627


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Photosynthesis

... a photon is absorbed by the chlorophyll core of photosystem II, exciting two electrons which are transferred to the primary acceptor protein. The deficit of electrons ...

 
 
 
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