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Calvin-Benson 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 cycle is used directly to fix carbon dioxide. In C4 plants and CAM plants, a different carbon fixation precedes Calvin-Benson cycle.


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

Variants: Calvin cycle or Calvin- Benson-Bassham cycle

See also: Photosynthesis on Tutorials for further information.


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Re: the Calvin cycle???help please

crystal clear sir :)

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by jwalin
Tue Oct 13, 2009 3:50 am
 
Forum: Botany Discussion
Topic: the Calvin cycle???help please
Replies: 8
Views: 417

the Calvin cycle???help please

... i thought and so my text also says the same. and hhence it's called the calvin cycle. about the last part i.e. " just minor.....calvin cycle" i have not studied ...

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by jwalin
Tue Oct 13, 2009 1:29 am
 
Forum: Botany Discussion
Topic: the Calvin cycle???help please
Replies: 8
Views: 417

Re:

i hope am not too late. in the cycle a co2 is added to 5C compound the RUBPwhich forms a 6C unstable compound which ... glyceraldehyde phosphate is primarily recycled, that's why is it called The Calvin CYCLE and why it can work all the time ;) Just a minor part is transformed to ...

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by JackBean
Tue Oct 13, 2009 12:43 am
 
Forum: Botany Discussion
Topic: the Calvin cycle???help please
Replies: 8
Views: 417

question

... about it even further you would need many things that fill the needs of calvin cycle, light reactions also.

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by jwalin
Mon Oct 12, 2009 12:40 pm
 
Forum: General Discussion
Topic: question
Replies: 11
Views: 282

How much RNA is there in a cell?

... for different proteins (e.g. photosynthesis aparathus in chloroplast × Calvin cycle enzymes in mitochondrion) and also the dependence of these organels on nuclear gene transcription ...

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by JackBean
Sat Oct 03, 2009 5:12 am
 
Forum: Genetics
Topic: How much RNA is there in a cell?
Replies: 7
Views: 341
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