Jan van Helmott began research into photosynthesis in the mid-1600s.
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Replied to: Jan van Helmott began research into photosynthesis in the mid-1600s.
Jan Ingenhousz discovered in 1778 that plants used sunlight to create oxygen.
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Replied to: Jan Ingenhousz discovered in 1778 that plants used sunlight to create...
Cornelius Van Niel's purple sulfur bacteria experiments showed that photosynthesis was light-dependent.