Photosynthesis is so important that without it there would be no life on Earth. Photosynthesis is the process by which light energy is transformed into chemical energy. During photosynthesis, chemical energy is used to obtain organic compounds from carbon dioxide. Carbon dioxide and water are the raw materials. The main source of energy is sunlight absorbed by the plant. Then oxygen and glucose are produced. This is what facilitates cellular respiration in humans. During this process, water is used and then O2 is released into the atmosphere. These organic compounds are important to plant life because they are what help a plant grow and develop fully. Plants are photoautotrophic, meaning they feed themselves using sunlight. Plants aren't the only ones to benefit from this magnificent process. Animals benefit from this because they consume the plants and all the molecules obtained are then transformed into their own organic molecules. These organic molecules constitute the main source of energy for animals. During photosynthesis, pigments play an important role. Pigments are what allows photosynthesis to take place. It is the substance that absorbs sunlight. Pigments are what allow us to see whether light has been absorbed or not. But pigments don't reflect all wavelengths of light. These chemical compounds are useful to plants because they capture and harvest energy from the sun. Pigments exist primarily in the chloroplast. It is thanks to their photosynthetic pigments that they capture energy of a specific wavelength. During photosynthesis, pigments allow the plant to use the light that reaches it and thus increase the amount of chemical energy. These light-absorbing compounds work with chlorophyll a. This...... middle of paper......linder. Let it dry then repeat the application of the extract to the pencil line up to four times. Make sure the pigment strip is really dark. The following steps were carried out under a hood. Following the previous step, we placed the pigment extract on chromatographic paper placed in a cylinder. The cylinder will then be placed in a jar containing petroleum ether and acetone. Allow the chromatography to advance 3 cm on the cylinder. Finally, the cylinder was removed from the pot. In paper chromatography analysis, golden yellow represented carotene, pale yellow represented xanthophyll, grass green represented chlorophyll a, and yellow-green represented chlorophyll b. Chlorophyll B was at the very bottom of the paper, making it the most polar and least soluble in the solvent. Carotene was the most nonpolar and the most soluble in the solvent.