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We can write photosynthesis like this:

An example of photosynthesis is how plants convert sugar and energy from water, air and sunlight into energy to grow.

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Photosynthesis makes food for plants and for animals.

That hypothesis contradicts one of the widely held ideas about the origins of photosynthesis: that species incapable of photosynthesis suddenly obtained the capacity through genes passed laterally from other organisms. According to Cardona, in light of the new discoveries, horizontal gene transfer and gene loss may both have played a role in the diversification of reaction centers, although he suspects that the latter may have been responsible for the earliest events. The finding, he said, might suggest that “the balance skews toward the gene-loss hypothesis”—and toward the idea that photosynthesis was an ancestral characteristic that some groups of bacteria lost over time.

In the process of photosynthesis plants change solar energy into chemical energy.

To that end, they have turned their attention to existing organisms. By studying the molecular details of the reactions that green plants, algae and some bacteria use to photosynthesize, and by analyzing the evolutionary relationships among them, scientists are trying to piece together a cogent historical narrative for the process.

Photosynthesis Images - Photos - Pictures - CrystalGraphics

– Homepage for the Center for Bioenergy and Photosynthesis at ASU, which carries out all manner of research into photosynthesis.

Since it was discovered in the soil around Iceland’s hot springs in the mid-1990s, H. modesticaldum has presented researchers with an interesting piece of the photosynthesis puzzle. The only photosynthetic bacterium in a family with hundreds of species and genera, heliobacteria’s photosynthetic equipment is very simple—something that became even more apparent when it was sequenced in 2008. “Its genetics are very streamlined,” said , a biochemist at Imperial College London.

Both types of photosystem come together in green plants, algae and cyanobacteria to perform a particularly complex form of photosynthesis—oxygenic photosynthesis—that produces energy (in the form of ATP and carbohydrates) as well as oxygen, a byproduct toxic to many cells. The remaining photosynthetic organisms, all of which are bacteria, use only one type of reaction center or the other.

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Photosynthesis and all associated reactions take place at the molecular level. These microscopic reactions involve several molecules aside from chlorophyll. Some of the other molecules are water (H2O), carbon dioxide (CO2), oxygen (O2), and glucose (C6H12O6). All of the components are necessary and the absence of any one of them causes the entire process to fail. For example, if there is no water available to the plant roots, they will begin to turn brown and die, effectively stopping photosynthesis. Oxygen and glucose are not used in photosynthesis, but are byproducts of the reaction. Oxygen is released into the air, and glucose is stored inside the plant cells.

In leafy plants, the process of photosynthesis occurs largely in the leaves. Because of this, all the necessary ingredients need to be present in the leaves for the reaction to take place. Carbon dioxide is absorbed into the leaves from the air, water is routed from the roots to the leaves, and sunlight is absorbed into the leaves through chlorophyll. Chlorophyll is a green pigment inside plant cells called chloroplasts - which also have several other structures within them. Chloroplasts are important because they are where photosynthesis takes place.

– Historical article from a researcher at NASA exploring when photosynthesis first developed on Earth.
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  • What Is Photosynthesis? From Light Energy to Chemical …

    Origin of photosynthesis

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    photosynthesis

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    PHOTO-SYNTHESIS

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10Photosynthesis Concept Outline 10.1 What is photosynthesis

Photosynthesis results in carbon dioxide gas being removed from the atmosphere. Carbon dioxide is a greenhouse gas that is responsible for global warming.

The Chloroplast as a Photosynthetic Machine

their best glimpse yet into the origins of photosynthesis, one of nature’s most momentous innovations. By taking near-atomic, high-resolution X-ray images of proteins from primitive bacteria, investigators at Arizona State University and Pennsylvania State University have extrapolated what the earliest version of photosynthesis might have looked like nearly 3.5 billion years ago. If they are right, their findings could rewrite the evolutionary history of the process that life uses to convert sunlight into chemical energy.

photosynthesis Pictures, Images & Photos | Photobucket

– Very informative computer animated videos showing the process of photosynthesis. There are two, one for land based plants and one for marine life.

Learn About Photosynthesis Formula - ThoughtCo

Photosynthesis directly or indirectly powers and sustains almost every organism on Earth. It is responsible for the composition of our atmosphere and forms the foundation of the planet’s many interwoven ecosystems. Moreover, as , a biologist at the French National Center for Scientific Research in Paris, noted, photosynthesis liberated cells to grow and evolve boundlessly by letting them derive energy from a new, inexhaustible, nonterrestrial source. “When photosynthesis entered the picture, life connected up to the cosmos,” he said.

Chemical formula for photosynthesis

Photosynthesis is not an immediate process. The entire chain of events will not occur as soon as the sunlight hits the leaves. Some of it will actually occur in darkness when there is no visible sunlight. Photosynthesis is split into two separate parts referred to light dependent and light independent reactions. The light dependent reaction happens when sunlight is captured and used to begin the process, resulting in the creation of a molecule known as ATP. ATP is a free energy containing molecule and is produced through a chain of steps starting when chlorophyll absorbs light energy. The light independent reaction creates glucose through the Calvin cycle, which uses the ATP and carbon dioxide to make sugar. Dark or light independent reactions occur in the stroma of the plant.

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