Photosynthesis And Its Effect On The Earth 's Atmosphere With Oxygen

1237 Words Dec 14th, 2015 5 Pages
Introduction: Photosynthesis powers ecosystems and provides the Earth’s atmosphere with oxygen. It is a reaction that requires water, carbon dioxide and energy from the sun to produce glucose and oxygen. In the process of photosynthesis water is oxidised and carbon dioxide is reduced. The process of photosynthesis consists of two parts; a light-dependent reaction and a light-independent reaction. In the light dependent reaction the energy from light moves the electrons from a photosystem into to high energy state. In the light dependent reaction carbon dioxide and a few other compounds are combined to make glucose. The chemical equation for photosynthesis is 6CO2 + 6H2O = energy from the sun → C6H12O6 + 6O2. CO2 is carbon dioxide, H2O is water, C6H12O6 is glucose, O2and is oxygen.

Once both the light-dependent and the light-independent reactions a process called fermentation. In fermentation glucose, or sugar, is converted to acid, alcohol, or gasses. The chemical equation for fermentation is C6H12O6 + 2 NAD+ + 2 ADP + 2 Pi → 2 CH3COCOO− + 2 NADH + 2 ATP + 2 H2O + 2H+. The most common substrate for fermentation is sugar.

The purpose of photosynthesis lab was to calculate whether or not aquatic plants need sunlight to use carbon dioxide. My hypothesis was: The aquatic plant will need at least a little bit of sunlight to photosynthesize. If an aquatic plant doesn’t get any light it won’t use carbon dioxide to photosynthesize and eventually will die. If an…

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