The Development Of Photosynthesis

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The Development Of Photosynthesis

The Development Of Photosynthesis By: Hanasia Jenkins

Julius Mayer was the first to state the Law of the Conservation of Energy. It stated that energy cannot be created nor destroyed. He also stated that the sun is the main source of energy for both plants and animals. When plants abosrb it, they convert this light energy to chemical energy through the process of photosynthesis.

Jan van Helmont planted a seedling in a pot of soil and watered it regularly for 5 years. At the end of the five years the seedling now a grown into a small tree gained 75kg. He concluded that most ofthe mass a plant gained had come from water, because that was the only thing he had added to the pot.

Ian Ingenhousz showed the same effect as Priestley, but he proved this could only occur in the presence of light. The results of both Priestley's and Ingenhousz's experiments showed light is need in order for plants to produce oxygen.

Joseph Priestly took a candle and placed a glass jar over it. The flame died down over time and eventually out. Priestly said that something in the jar had to keep the candle burning. He then discovere that a live sprig of mint allowed the candle to burn for a few days because it contained oxygen. This alowed the candle to be relight and remain lit for a while.

Samuel Ruben and Martin Camen, discovered that the basic element of carbon had a radioactive isotope “Carbon-14”. It was radioactive because it had two additional neutrons.

Marion Thurnauer was the first women to be apart of the study of bio-inspired nanomaterials that mimic the energy transduction of natural photosynthesis.

6CO2 + 6H2O --> C6H12O6 + 6O2(Photosynthesis Formula)

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Melvin Calvin discovered the Calvin Cycle which is when the light-independent reactions of photosynthesis are chemical reactions that convert carbon dioxide and other compounds into glucose.

Did You Know?1.) There are two types of chlorophyll.2.) 30% of the world’s oxygen is produced in the rainforest.3.) Chemosynthetic bacteria and protists perform photosynthesis too.

To tie everything all these scientist put together came up with idea that photosynthesis contains carbon dioxide that humans breathe out and water that plants get from its roots being tranformed into with the help of sunlight energy glucose and oxygen.


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