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![[Post New]](/templates/default/images/icon_minipost_new.gif) 24 Jan 2008 10:51:17 IST
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if we take co2 n h2 in presence of light n chrolophyll,why cant we prepare glucose in lab??
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25 Jan 2008 12:00:45 IST
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Get a hold a grade 10 science textbook. The process of photosynthesis is explained there.
From what I remember, photosynthesis occurs in two phases: light reaction and dark reaction.
I think the light reaction can't occur because you need electron transport chains (or something like that) in this step.
Check the textbook. The answer will be there deinately.
Hope this helps
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25 Jan 2008 12:19:16 IST
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Photosynthesis requires the presence of various enzymes and also energy in the form of ATP, these factors cannot be provided in the laboratory
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15 Feb 2008 19:09:41 IST
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The formation of glucose from carbon dioxide and water in presence of chlorophyl and sunlight though many times shown as a simple reaction is not that simple. The process is quite complicated. The plants have the necessary machine and mechanism to syntheses starch ( glucose ). If you go through the process of photosynthesis from any book on physiology in botany you will understand that the process is not simple as it actually appears.
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29 Jul 2008 01:35:16 IST
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Why r you askng questions on biology on goiit  ??
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22 Aug 2008 20:11:06 IST
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r u cr@zy or m@d siddharth ...................nd photosynthesis is @ complex biologic@l process which invoves 2 series of re@ctions c@t@lysed by enzymes so would b the re@son.................
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22 Aug 2008 20:15:47 IST
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easy done
1.)photosyntheses requires sunlight means actual sunlight which can active or increases catalytic capabilities of enzymes otherwise glucose will not be formed.
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4 Sep 2008 10:03:11 IST
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Well, Photosynthesis incorporates
1) Light Reaction 2) Dark Reaction
1) Light Reaction ------
(i) PSII( Reaction centre P680 ) (ii) PSI ( Reaction Centre P700 )
It begins with light harvesting zone which utilizes the incident solar radiation for photolysis of water molecule to excite the Reaction centre of PSII i.e. P680 to lend 4e- to the series of following complex reactions.
PSII ---> P680*----> Phaeophytin----> Plastoquinone -----> Cyt b6-f complex ----> Plsto Cyanin ----> PSI(P700)
----> P700* ----> A[Fe-S] complex ----> Ferredoxin-----> 2NADP+-----> 2NADPH2.
SINCE Phaeophytin , PQ , Cyt b6-f complex , PC , A[Fe-S] complex , Ferredoxin and other such complexes cannot be made available in laboratory it is impossible to carry out process of photosynthesis in Lab.
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@seth |
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14 Sep 2008 20:12:02 IST
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i think some scientist peformed photosynthesis in lab using chloroplasts from stelleria media in lab.. he used ferradoxin or such oxidizing agents......
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size doesnt matter, brains do...
vignesh |
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