Navigation Links
Photorespiration


Photorespiration is an alternate pathway for rubisco, the main enzyme of photosynthesis (specifically, the Calvin cycle). Although rubisco favors carbon, it can also use oxygen, producing glycolate . This usually occurs when oxygen levels are high; for example, when the stomata (tiny pores on the underside of the leaf) are closed to prevent water loss.

The reaction is:

RuBP + rubisco + O2 → phosphoglycolate

The glycolate is then sent to peroxisomes.

Photorespiration is a wasteful process because no PGAL is created. PGAL is used to create nearly all of the food and structures in the plant. Plants cope with photorespiration via CAM and C4 metabolism.


'"/>


(Date:8/28/2014)... MD FASEB MARC (Maximizing Access to Research ... for the American College of Sports Medicine,s Conference ... 2014 in Miami, Florida. These awards are ... doctorates and scientists from underrepresented groups into the ... encourage the participation of young scientists at the ...
(Date:8/28/2014)... Philadelphia, PA, August 28, 2014 Dyslexia, the ... States, is a neurological reading disability that occurs ... written language don,t function normally. , The use ... how brain activity is disrupted in dyslexia. However, ... small number of brain regions, leaving a gap ...
(Date:8/28/2014)... health risk to people with asthma according to a new ... Immunology . , By critically reviewing the findings from 17 ... the presence of several types of mould can lead to ... likelihood of developing the condition. , The research has been ... School and is the first time all of the information ...
Breaking Biology News(10 mins):Dyslexic readers have disrupted network connections in the brain 2Indoor mold poses health risk to asthma sufferers 2
... that human inheritance is spelled out in our DNA and ... a variety of methods that our cells have evolved to ... things, epigenetics is crucial to differentiation, the process which makes ... of the mystery of stem cells. , Genomic ...
... The study, which was directed by Scripps Research ... the September 8 issue of The Journal of ... pathway-different than the one previously suggested-for the biosynthesis ... the endogenous cannabinoid ("endocannabinoid") anandamide. The high activity ...
... was directed by Scripps Research Professor Benjamin Cravatt, ... issue of The Journal of Biological Chemistry. , ... one previously suggested-for the biosynthesis of neurotransmitter lipids, ... ("endocannabinoid") anandamide. The high activity of the enzyme ...
Cached Biology News:Inheritance outside DNA 2Nanotechnology propels advances in regenerative medicine research 2Brown seaweed contains promising fat fighter, weight reducer 2
Other biology definitionOther Tags