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Understanding The Calvin Cycle In Photosynthsis

Understanding Photosynthesis Part 4 The calvin cycle

The above video will briefly explain the steps involved in the calvin cycle process. The calvin cycle actually describes the set of chemical reactions taking place in the chloroplast during photosynthesis.

In the calvin cycle , a molecule of carbon dioxide attaches itself to a five-carbon molecule called ribulose 1,5-biphosphate to form a six carbon molecule. An enzyme called RuBisCo will then spit the six carbon molecules into two equal parts of three carbon molecules( 3-PGA,3-PGA). PGA(phosphoglyceric acid);

One of the 3-PGA will be used to produce simple sugar called G3P(glyceraldehyde 3-phosphate) which actually uses energy from ATP and NADPH for its formation. The other 3-PGA will be converted back to form the five carbon molecule using the energy from ATP and NADPH.

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