What is the purpose of photosynthesis?

Answer

Photosynthesis is a process that allows plants to harvest energy in sunlight and store it chemically, by producing sugars. Sugars hold energy in their molecular bonds; when the plant breaks down these bonds, energy is released that the organism can then use. Although green plants are the most famous photosynthesizing organisms, some bacteria, algae and protists carry out the process as well.

In plants, photosynthesis takes place in small organelles found in some of the plant’s cells, called chloroplasts. Chloroplasts are most numerous in the cells that make up the plant’s leaves, although the stems and sepals may also contain small numbers of the organelles. Chloroplasts combine carbon dioxide and water with sunlight to produce the storage sugars. In the process, the plants produce oxygen and release a small amount of the water they absorbed.

Photosynthesis enables most aquatic and terrestrial ecosystems to persist. All of the planet’s ecosystems require an influx of energy. While a few species of bacteria may harvest the energy of chemical bonds and some deep-sea organisms obtain energy from thermal gradients found around geothermal vents, green plants capture sunlight and use it as an energy source. Through the synthesis of sugars, plants become food for the animals. Accordingly, scientists often refer to plants as producers, while animals are consumers.

Q&A Related to "What is the purpose of photosynthesis?"
Photosynthesis is a two-stage process. The first process-the light dependent process-requires the direct energy of light to make energy carrier molecules that are used in the second
http://www.ehow.com/about_6303937_purpose-photosyn...
The main purpose is to make simple sugar.
http://wiki.answers.com/Q/What_is_the_Main_purpose...
To put it simply, it's how plants obtain their food. They take the Sun's light and convert carbon dioxide into basic sugars. The process requires carbon dioxide, water and sunlight.
http://www.ask.com/web-answers/Science/Biology/wha...
The purpose of NADPH in photosynthesis is as a reducing
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What Is the Purpose of Photosynthesis?
Photosynthesis is a naturally occurring event by which some bacteria, protistans and plants use sunlight energy to make sugar or chemical energy. The overall purpose of photosynthesis is to change inorganic carbon dioxide and water molecules into... More »
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