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What is photesynthesis?

Updated: 8/11/2023
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13y ago

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Photosynthesis is the process of converting light energy (typically from the sun) into to chemical energy, for the organism to use as food. Not only plants can photosynthesize. Photosythesis is the process of converting light enery (typically from the sun) into chemical energy for the oragnism to use as food.

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15y ago
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14y ago

Photosynthesis means plant life. Plant life and light, to be exact. To remember this, all you need to do is remember a plant needs light. To remember the light part, remember, a photo always has a light flash! Good Luck! :)

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12y ago

Photosynthesis (English pronunciation: /foʊtoʊˈsɪnθəsɪs/; from the Greek φώτο- [photo-], "light," and σύνθεσις [synthesis], "putting together", "composition") is a chemical process that converts carbon dioxide into organic compounds, especially sugars, using the energy from sunlight.[1] Photosynthesis occurs in plants, algae, and many species of bacteria, but not in archaea. Photosynthetic organisms are called photoautotrophs, since they can create their own food. In plants, algae, and cyanobacteria, photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product. Photosynthesis is vital for all aerobic life on Earth. As well as maintaining the normal level of oxygen in the atmosphere, nearly all life either depends on it, either as a direct source of energy, or indirectly, as the ultimate source of the energy in their food[2] (the exceptions are chemoautotrophs that live in rocks or around deep sea hydrothermal vents). The rate of energy capture by photosynthesis is immense, approximately 100 terawatts,[3] which is about six times larger than the power consumption of human civilization.[4] As well as energy, photosynthesis is also the source of the carbon in all the organic compounds within organisms' bodies. In all, photosynthetic organisms convert around 100-115 petagrams of carbon into biomass per year.[5][6]

Although photosynthesis can happen in different ways in different species, some features are always the same. For example, the process always begins when energy from light is absorbed by proteins called photosynthetic reaction centers that containchlorophylls. In plants, these proteins are held inside organelles called chloroplasts, while in bacteria they are embedded in theplasma membrane. Some of the light energy gathered by chlorophylls is stored in the form of adenosine triphosphate (ATP). The rest of the energy is used to remove electrons from a substance such as water. These electrons are then used in the reactions that turn carbon dioxide into organic compounds. In plants, algae and cyanobacteria, this is done by a sequence of reactions called the Calvin cycle, but different sets of reactions are found in some bacteria, such as the reverse Krebs cycle in Chlorobium. Many photosynthetic organisms have adaptations that concentrate or store carbon dioxide. This helps reduce a wasteful process called photorespirationthat can consume part of the sugar produced during photosynthesis.

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12y ago

the process when energy is generated with co2 and h2o in a plant

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13y ago

It is the process in which plants create food from the suns energy

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