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Photosynthesis

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Photosynthesis

L
Lukuz

11 Views • Sep 28, 2017

Wikipedia Context

Photosynthesis is a system of biological processes by which photopigment-bearing autotrophic organisms, such as most plants, algae and cyanobacteria, convert light energy — typically from sunlight — into the chemical energy necessary to fuel their metabolism. The term photosynthesis usually refers to oxygenic photosynthesis, a process that releases oxygen as a byproduct of water splitting. Photosynthetic organisms store the converted chemical energy within the bonds of intracellular organic compounds, typically carbohydrates like sugars, starches, phytoglycogen and cellulose. When needing to use this stored energy, an organism's cells then metabolize the organic compounds through cellular respiration. Photosynthesis plays a critical role in producing and maintaining the oxygen content of the Earth's atmosphere, and it supplies most of the biological energy necessary for complex life on Earth.

Full Article

Description

You will learn about Photosynthesis in this video. Do you know how plants make their own food? They prepare their own food by a process called photosynthesis. Photo is the Greek word for light and synthesis is the Greek word for putting together. Plants need light from the sun, carbon dioxide from the air and water to prepare their own food. Photosynthesis takes place in the leaves of a plant \r
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Leaves have tiny pores called stomata through which carbon dioxide enters the plant. Plant cells contains tiny structures called chloroplasts that contain chlorophyll. Carbon dioxide and water, in the presence of sunlight and chlorophyll get converted into oxygen and glucose. Oxygen then leaves the plant through the stomata. The glucose produced is used for the nourishment of the plant. The extra glucose produced is stored by the plant in the form of starch for later use. Thus, photosynthesis is the process by which plants prepare their own food using carbon dioxide and water in the presence of sunlight.\r
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