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Calvin- Benson-Bassham cycle

Definition

noun

A cyclical series of biochemical reactions that occur in the stroma of chloroplasts during photosynthesis. It includes the light-independent reactions such as carbon fixation, reduction reactions and ribulose 1,5-diphosphate (RuDP) whereby sugars and starch are ultimately produced.


Supplement

At this stage of photosynthesis, the energy released from ATP produced during light reactions is used to drive the conversion of carbon dioxide and other compounds into an organic molecule (e.g. glucose).

In C3 plants, the Calvin- Benson-Bassham cycle (or simply Calvin cycle) is used directly to fix carbon dioxide. In C4 plants and CAM plants, a different carbon fixation precedes Calvin cycle.


Word origin: named after its discoverers, Melvin Calvin, James Bassham and Andrew Benson at the University of California, Berkeley.

Abbreviation: CBB cycle
Variants: Calvin-Benson cycle or Calvin cycle

See also: Photosynthesis on Tutorials for further information. For definition of photosynthesis, click here


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Energy/Enzymes & Photosynthesis

... What molecule needs to be present to begin the Calvin-Benson cycle? (ATP?) 10. Do all plants show same pathways of photosynthesis? ...

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by xanniesofly
Mon Oct 27, 2008 2:43 am
 
Forum: Cell Biology
Topic: Energy/Enzymes & Photosynthesis
Replies: 4
Views: 4181

HELP ME PLEASE ......!!

... glycolysis only b. it involves the Krebs cycle c. It generates NADH and FADH d. it generates ... not genetae ATP? B A. Photophosphorylation B. Calvin - Benson cycle C. oxidative phosphorylation D. substrate - ...

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by BCH04
Mon Jun 18, 2007 4:15 pm
 
Forum: General Discussion
Topic: HELP ME PLEASE ......!!
Replies: 12
Views: 39214

HELP ME PLEASE ......!!

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by blcr11
Mon Jun 18, 2007 1:58 pm
 
Forum: General Discussion
Topic: HELP ME PLEASE ......!!
Replies: 12
Views: 39214

HELP ME PLEASE ......!!

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by BCH04
Sun Jun 17, 2007 6:41 pm
 
Forum: General Discussion
Topic: HELP ME PLEASE ......!!
Replies: 12
Views: 39214

photosynthesis

... can join ATP in order to reduce PGA to PGAL in Calvin-Benson's cycle (dark stage)

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by SU_reptile
Thu May 25, 2006 5:01 pm
 
Forum: Botany Discussion
Topic: photosynthesis
Replies: 9
Views: 6546
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