-
1450
Nicholas of Cusa
Proposed that the material and weight of plants was came from water, not soil -
Joseph Priestley
Demonstrated with his experiment that plants could turn used air into breathable air again -
Jan Ingenhousz
showed that plants needed sunlight to restore the used air and that only the green parts on the plants heal air -
Various European Scientists
Oxygen discovered and showed as the healed
air, carbon dioxide discovered and showed as the used air -
Jean Senebier
Discovered that plant's food consists of carbon dioxide dissolved in water -
Julius von Sachs
Discovered that chlorophyll is found in chloroplasts, minerals were needed to make chlorophyll and that plants take in and use minerals from the ground/soil. -
Theodor Wilhelm Engelmann
Showed that oxygen was produced by chloroplasts and that red & blue light are the most important wavelengths for photosynthesis
