Biotechnology Essay Example | Topics and Well Written Essays - 1250 words - 1

Biotechnology - Essay Example Chlorophyll absorbs all wavelengths of the visible light except the green light, which is reflected out. The chlorophyll is a complex molecule. Being complex it ahs undergone a lot of modifications and as a result chlorophyll a, chlorophyll b, xanthophylls and carotenoids are found in the leaf. Carotenoids and chlorophyll b absorbs some of the green wavelength energy. Chlorophyll a receives it energy from the blue-violet and reddish orange wavelength. As the intensity of the light increases, the increase of the photosynthesis is observed. (Giacometti and Giacometti, 2009). The present study was performed to determine the effect of the color on the photosynthesis rate, the rate of photosynthesis, the rate of oxygen uptake was determined for this experiment. Chromatography is the process of separation of the solutes. Paper chromatography is the process of separating the pigments that are present in the chlorophyll into fractions based on their molecular weight. The porosity of the paper helps in the separation using petroleum ether –acetone solvent. The plant emits oxygen when the photosynthesis reactions take place. If the intensity of the light is higher, then the rate of photosynthesis is higher. At the same time if the light is kept closer to the leaf, it should also increases the photosynthesis rate because the intensity is directly proportional to the photosynthesis. The action spectra have color of various wavelengths shorter to longer. If the wavelength is small then the intensity of the light should be higher. This indicates that the color with greater intensity will have greater photosynthetic rate. When the red, green , blue light are used as the light source for the photosynthesis reaction, then the light of shorter w avelength should produce maximum intensity , therefore the photosynthesis will be greater. Of the three colors the blue has the shorter wavelength, so it should produce higher photosynthetic rate. Fresh