The Effects of Visible Light Wavelength and Chloroplast on Photosynthesis Introduction Living things are grouped into two categories (heterotroph and autotroph). Heterotrophs carry out metabolic processes by obtaining energy autotrophs have stored in hydrocarbon form. Autotrophs have the ability to synthesize energy from non-living things and storing it in hydrocarbon form. Majority of autotrophs are photoautotrophs. Photoautotrophs obtain energy from light. However, chemoautotrophs synthesize their energy from chemicals such as hydrogen sulfide. Photoautotrophs trap energy from the sun in a process known as photosynthesis. Photosynthesis is the process which generates organic materials and oxygen by using carbon (IV) oxide and water in light …show more content…
Photosynthesis is a redox reaction, where electrons related to hydrogen are forced to move from low to high energy potential. Photon packets help in understanding energy transfer in the photosynthesis process. Photon packets come to first come to plant leaf cells. The energy that originates from the sun is the main by-product of hydrogen fusion that results in helium formation. Therefore, a small percentage of this fusion reaches the Earth. Additionally, small amount reaches the plant leaves and trapped by photosynthesis process. Light is electromagnetic energy. The energy is transferred in the form of motion in an electromagnetic field existing in a wave. Thus, the shorter the wavelength, the more energy it contained. This is in contrary to the longer wavelength. White light originating from the sun consists of a whole spectrum of visible light wavelengths (ranging 400nm to 750nm). Chlorophyll in chloroplast traps the sun’s light in two parts (red (680nm) and purple (400nm to …show more content…
Moreover, chloroplasts were also investigated if they truly the sites responsible for photosynthesis in the plants’ leaves. Materials and methods Step 1: Strong lights of equal intensity were set-up on a laboratory bench. A large beaker containing water which was nearly ice cold was placed immediately in front of each light. This acted as a heat sink. Three Eldolea healthy green sprigs were fresh, diagonally cut at their ends. Each Eldolea healthy green sprig was inserted in large test tubes placed at 25cm, 50cm and 75cm from heat sinks. Also, 0.5% of sodium bicarbonate solution was added to each test tube to provide the Eldolea healthy green sprigs with carbon (IV) oxide. The observations were made and recorded. These steps were repeated for two more times. Step 2: The procedures conducted in step 1 were repeated for this step. However, the lights were of different colors(green, blue and red) and large test tubes were placed 25cm from heat sinks. Step