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Photosynthesis

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For photosynthesis to occur, plants need light energy (from the sun) and chlorophyll. Chlorophyll found in green plants, absorb the light, making photosynthesis possible. During the process of photosynthesis, the water and carbon dioxide absorbed by plants is converted into glucose. Glucose is used by the plant for its immediate energy needs and the excess glucose is turned into starch which is either stored in the roots, leaves or fruits. Oxygen molecules absorbed are used to break down the carbohydrates and the remainder is released into the atmosphere. Plants not only produce food to sustain their existence but also food to nourish animal and human life.

To sustain life on Earth both carbon dioxide and oxygen are equally important. However, the amount of carbon dioxide presently produced by human activities is greater than what all the Earth’s plants are able to absorb. The burning of fossil fuels is one of the major causes of the disproportionate amounts of carbon dioxide in the atmosphere and this imbalance is affecting all life on Earth. We have the ability to use our natural resources more wisely and sustainably thus reducing carbon emissions.

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