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1640s

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

Decades: 1590s 1600s 1610s 1620s 1630s - 1640s - 1650s 1660s 1670s 1680s 1690s

Years: 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649


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Photosynthesis

... The deficit of electrons is made up for by taking electrons from a molecule of water, splitting it into O2 and H+. The electrons transfer from the primary acceptor ...

 
 
 
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