How Does Color Light Affect Photosynthesis

1727 Words7 Pages
Sandy Kim
Period 4
IB Biology SL

Effect of color lights on photosynthesis rate

Personal Engagement I am interested in photosynthesis because before I have learnt about photosynthesis, I was wondering why most of leaves are green. Do not they have other colors like violet and yellow? It is important for me to investigate different colors of lights are affected by amount of photosynthesis because now I learn that chlorophyll, a main photosynthetic pigment, plays a vital role in a color that people observe. I want to find out which colors are the most effectively absorbed by chlorophyll. In order to prove it, elodea is needed because elodea is a typical plant to generate air bubbles, depending on light intensity and different foil sheets to
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However, oxygen is discharged. Meanwhile, sunlight is a vital pathway to transfer chemical energy, saving the glucose molecule, so that respiration, C_6 H_12 O_6, happens during photosynthesis.
Photosynthesis takes place chlorophyll, which is the main pigment in photosynthetic organisms. Its function is to absorb useful wavelengths of light. From chlorophyll, red and blue lights, in fact, are the most assimilative colors, whereas green light is exuded by chlorophyll. Therefore, a leaf looks green. As a role, photosynthesis is influenced by color of light, one of factors that affect to the rate of photosynthesis. Depending on amount of light absorbed in different light colors, those colors would impact on the rate of photosynthesis. According to a research done by Washington University in St. Louis, it articulated, “Green plants rely on two pigments, chlorophylls a and b, to absorb the energy in sunlight. By thoroughly investigating the chlorophylls a small group of chemists have learned how to modify pigments to absorb anywhere along the solar spectrum.” (“Widest possible photosynthesis, absorbing any color of sunlight, from organs through near- infrared 1), inferred that various pigments can be assimilated but rate of photosynthesis would be
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Light intensity is one of factors affecting photosynthesis. Depending on distance of light intensity, the result would be changed. Prior to the experiment, the distance should be settled. Even though it was expressed by using tape, it would be inexact. Therefore, improvement to the method would be to make the higher light intensities so as to be quite accurate, which denotes lamps would be adjusted to a beaker containing elodea from side to side because the smaller light intensities would be less accurate since the light spreads out, and the elodea might be exerted influence on other experiments or background light.
Lastly, the other fallacy derives from the water temperature. As the temperature of the water increases, carbon dioxide is produced up until its optimal temperature. In reality, when the plant attains the optimum, denaturalization of enzymes in elodea occurs so that that leads to cessation of oxygen.
Similar to this situation, same result would be created when the temperature is too cold. Even though the distilled water is used in this experiment, there could be the best temperature for elodea that can be producing air bubbles under light standing. In favor of fixing the limitation, several experiments that investigate the foremost temperature of elodea could be conducted

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