The Importance of Light During the Photosynthesis Process

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Photosynthesis is a chemical process by which green plants use the radiant energy to synthesize certain nutrients using water and carbon dioxide. This process to happen efficiently it requires the presence of light, water carbon dioxide, chlorophyll and enzymes. During the process of photosynthesis, carbon dioxide plus water in the presence of sunlight, enzymes and chlorophyll produce glucose and oxygen as waste product. The radiant energy is broken down the water into hydrogen atom and oxygen atoms, these atoms combine with carbon dioxide to make glucose and oxygen. As the radiant energy reaches the leave of a plant it penetrates through till it reaches the chloroplast, it then goes through the semi permeable membrane of the chloroplast. At the same time water enters the plant through the roots the water then makes it way up the plant carried by the xylem: this force that causes the water to travel up the plant is called the transpiration pull. This phase of photosynthesis is called the light dependant phase NADPH a co-enzyme takes the hydrogen atom to the light independent phase the hydrogen is taken from the water which splits into its 2 components. As the sun’s rays reach the chloroplast of plant specifically the thylakoids (contain chlorophyll) which are stacked together to form a grana. Without out the radiant energy water will not be able to separate into the water into oxygen and hydrogen. Without radiant energy photosynthesis would not occur. In this experiment we want to determine whether light is necessary for photosynthesis. The predicated outcome of this experiment is that photosynthesis will not occur without the presence of light or radiant energy. The product of photosynthesis is glucose which can also be said to b...

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...4, from Encylopedia: http://www.life.illinois.edu/govindjee/encyc/encarta.htm

KhanAcademy. (2014). Photosynthesis: Light reactions and photophosphorylation. Retrieved March 24, 2014, from KhanAcademy: http://www.khanacademy.org/science/biology/photosynthesis/v/photosynthesis---light-reactions-and-photophosphorylation

ONLINE LABS. (n.d.). Importance of Light in Photosynthesis. Retrieved March 24, 2014, from ONLINE LABS: http://amrita.olabs.co.in/?sub=79&brch=16&sim=126&cnt=1

Unknown. (n.d.). EXPERIMENT III: SHOWING THAT LIGHT IS NECESSARY FOR PHOTOSYNTHESIS . Retrieved March 24, 2014, from ELATE: http://www.elateafrica.org/elate/biology/nutrition/worksheet111.html

Unknown. (2013, June 28). Factors affecting photosynthesis. Retrieved March 24, 2014, from The Amazing World of Science: http://ellemedit1234.wordpress.com/2013/06/28/factors-affecting-photosynthesis/

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