plant

Photosyntheic mechanisms

C3 and C4 photosynthetic mechanism

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C3 carbon fixation is one of three metabolic pathways for carbon fixation in photosynthesis, along with C4 and CAM. This process converts carbon dioxide and ribulose bisphosphate (RuBP, a 5-carbon sugar) into 3-phosphoglycerate through the following reaction:

CO2 + RuBP → (2) 3-phosphoglycerate

C4 carbon fixation is one of three biochemical mechanisms, along with C3 and CAM photosynthesis, used in carbon fixation. It is named for the 4-carbon molecule present in the first product of carbon fixation in the small subset of plants known as C4 plants, in contrast to the 3-carbon molecule products in C3 plants.

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<More information>

(http://en.wikipedia.org/wiki/C4_carbon_fixation) (http://en.wikipedia.org/wiki/C3_carbon_fixation)

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Labelled Diagrams

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http://www.cropsreview.com/c3-plants.html 

http://www.cropsreview.com/c4-plants.html

-http://en.wikipedia.org/wiki/C3_carbon_fixation

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