Dictionary » P » Photolysis

Photolysis

Definition

noun

The splitting or decomposition of a chemical compound by means of light energy or photons.


Supplement

For example, the photolysis of water molecule in photosynthesis occurred under the influence of light. When photons are absorbed, it causes the hydrogen to bind to an acceptor, subsequently releasing the oxygen.


Word origin: photo + lysis
Related forms: photolytic (adjective)

Synonyms:

See also: photosynthesis


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Re: What happens to water during photosynthesis?

... drinking water lowered as soon as the impulse happen. Lowering of the drinking water happens in thylakoid. This particular impulse is called "photolysis": Throughout photolysis, 12 mol involving drinking water is usually decomposed to help fresh air, a couple of protons, in addition to ...

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by FrankGarza
Fri Jan 02, 2015 7:33 am
 
Forum: Botany Discussion
Topic: What happens to water during photosynthesis?
Replies: 6
Views: 55874

Photolysis of water ?

http://en.wikipedia.org/wiki/Photosynthesis#Water_photolysis

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by canalon
Sat Jul 21, 2012 2:44 am
 
Forum: Cell Biology
Topic: Photolysis of water ?
Replies: 2
Views: 3816

Photolysis of water ?

Photolysis of water is described as the breaking down of water using sunlight. But how could sunlight (phoons) just breaks down water like that ? Is it helped by an enzym ??

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by prasadif
Fri Jul 20, 2012 3:30 pm
 
Forum: Cell Biology
Topic: Photolysis of water ?
Replies: 2
Views: 3816

Photorespiration

... of CO2 which leads to photorespiration. But where is the oxygen coming from for photorespiration? In my textbook it says that it is coming from photolysis during the light-dependent stage of photosynthesis. However, surely if the stomata are closed, transpiration stops and so the level of water ...

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by SheffJoe
Wed May 16, 2012 11:14 am
 
Forum: Botany Discussion
Topic: Photorespiration
Replies: 3
Views: 4341
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