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Discovery of water contribution to plant's growth.
In the 1600's, a Belgian chemist named Jan Baptista van Helmont conducted an experiment where he believed the nutrients in water and not the soil made plants grow. -
Discovery that plants produce oxygen
Jan Ingenhousz, a Dutch chemist, proved that plants produced oxygen. He conduced an experiment where plants produced small bubbles in the sunlight. He determined plants needed sunlight to produce oxygen. -
Discovery that plants absorb carbon dioxide
Jean Senebier, a Swiss botanist, discovered that plants absorb carbon dioxide and release oxygen with the help of sunlight. -
Carbon Dioxide and Water
In the early 1800's, Nicolas-Théodore de Saussure discovered that the growth of large amounts of plants were not a result of carbon dioxide alone, but also the uptake of water. -
Plant transforms energy
Julius Robert Mayer, a German physician, proposed that plants convert light energy into chemical energy. -
Starch is Produced in Plants
Julius Sachs made an experiment where he determined how starch is produced with the help of sunlight and in relation to chlorophyll. -
General Equation for Photosynthesis
Cornelis Van Niel proposed the general equation for photosynthesis, which eventually led to the simplified equation for photosynthesis used today.