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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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Results from our forum


Photosynthesis question

... was wrong???????? oh well... :( wait! The wiki says that the OEC (oxygen evolving complex - part of photosystem II - the same complex that does photolysis, is an enzyme). I think I get it now. Thanks for everyone who replied!!!!!!!!!!!!!! :)

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by thewax
Sun Dec 28, 2008 5:52 pm
 
Forum: Cell Biology
Topic: Photosynthesis question
Replies: 3
Views: 544

Photosynthesis question

well, the wiki seems to be correct http://en.wikipedia.org/wiki/Photolysis#Photolysis_in_photosynthesis The process is not carried out by enzymes, but by P680.

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by MrMistery
Sun Dec 28, 2008 11:35 am
 
Forum: Cell Biology
Topic: Photosynthesis question
Replies: 3
Views: 544

Photosynthesis question

Note: This is not a homework question. This is part of a study effort for a big upcoming test. Question: What is photolysis? HOW is photolysis accomplished (proteins, etc.)?????? Progress on question: My textbook says that it is accomplished by enzymes but wikipedia and many sites ...

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by thewax
Sun Dec 28, 2008 1:16 am
 
Forum: Cell Biology
Topic: Photosynthesis question
Replies: 3
Views: 544

The two stages to photosynthesis

... when the chemical energy is used to create carbohydrates to "feed" the plant. No light is needed for this stage. In regards to photolysis look up light dependent stage (google image it), you should find a neat and comprehensible diagram that will make you understand this material ...

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by Darwin420
Mon Dec 01, 2008 10:15 pm
 
Forum: General Discussion
Topic: The two stages to photosynthesis
Replies: 2
Views: 1356

The two stages to photosynthesis

What are the two stages to photosynthesis called? what stage is the stage where photolysis happens? I'm doing a project on photosynthesis and my teacher told the class one day that is was very interesting, but i dont remember what it is.

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by bushibanbabe
Mon Dec 01, 2008 9:44 pm
 
Forum: General Discussion
Topic: The two stages to photosynthesis
Replies: 2
Views: 1356
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