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PGA

The 3 carbon molecule created from pGAL in glycolysis which is also produced in the calvin cycle in photosynthesis.


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Mitochondria & Chloroplast

... arising from photosynthetic electron transport. Those redox equivalents are then exported from chloroplasts via the malate–OAA shuttle or the DHAP–PGA shuttle. Under these conditions, mitochondria would oxidise cytosolic NAD(P)H rather than that generated by the TCA cycle. hope so this can help ...

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by manish94
Sun Apr 24, 2011 6:40 am
 
Forum: Cell Biology
Topic: Mitochondria & Chloroplast
Replies: 2
Views: 2572

the Calvin cycle???help please

... from the 6-C RuBP addition intermediate is likewise directly reduced to the PGL in the light. The other 3-C fragment remains unreduced as the PGA. The NADPH and ATP from the light reactions presumably reduce some of this PGA to PGL, which then undergoes cyclic condensation to regenrate the ...

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by fkfong
Mon Dec 06, 2010 11:37 pm
 
Forum: Botany Discussion
Topic: the Calvin cycle???help please
Replies: 15
Views: 18368

the Calvin cycle???help please

... Calvin cycle, the NADPH and ATP produced from the "light reactions," i.e., the Z scheme, are used to reduce, in the dark, one of the two PGA's from splitting of the 6-C addition intermediate to yield one triose molecule, PGL, which condenses to yield sucrose. Sentence Two: But the original ...

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by fkfong
Mon Dec 06, 2010 10:20 pm
 
Forum: Botany Discussion
Topic: the Calvin cycle???help please
Replies: 15
Views: 18368

Re: the Calvin cycle???help please

... Calvin cycle existed in plant photosynthesis, and carbon reduction occurs in the dark by the NADPH produced "in the light," i.e., the 3-PGA is reduced to the triose (PGL) oxidation level by the NADPH, are you suggesting the two possible pathways as follows? First, by "hydrogen provider," ...

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by fkfong
Mon Dec 06, 2010 8:37 pm
 
Forum: Botany Discussion
Topic: the Calvin cycle???help please
Replies: 15
Views: 18368

Re: Breakdown of stored glycogen & fat; glycolysis

... Lastly, during glycolysis, there are two occasions when ADP-->ATP. Can I say that both 'dephosphorylation' (DPGA-->3-PGA) and 'substrate-level phosphorylation' (ADP-->ATP) occur during each occasion? You need to have it clear in your head what substrate ...

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by MrMistery
Tue Apr 01, 2008 1:28 pm
 
Forum: Cell Biology
Topic: Breakdown of stored glycogen & fat; glycolysis
Replies: 1
Views: 13910
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