The energy source for ATP Synthesis ...

Discussion of all aspects of cellular structure, physiology and communication.

Moderators: honeev, Leonid, amiradm, BioTeam

Post Reply
Havoc
Garter
Garter
Posts: 7
Joined: Sat Apr 09, 2005 11:10 pm

The energy source for ATP Synthesis ...

Post by Havoc » Sat Apr 09, 2005 11:22 pm

Ok the question being asked is: "The energy source for ATP Synthesis following energy released in the Electron Transport Chain in both photosynthesis is?"
Is it H2O?
If so then what are the principle reactants of photosynthesis?

User avatar
b_d_41501
King Cobra
King Cobra
Posts: 746
Joined: Mon Apr 25, 2005 9:55 pm
Location: Kentucky
Contact:

Post by b_d_41501 » Thu Jun 02, 2005 7:54 pm

6H2O + 6CO2 ----------> C6H12O6+ 6O2

So water and CO2 are the principle reactants. I guess you could say H20 is the answer since it is converted into H+ ions and 02- ions which go on to do their respective duties.
"Take four red capsules, in ten minutes take two more. Help is on the way."
----- Voice from the Medicine Cabinet

User avatar
mith
Inland Taipan
Inland Taipan
Posts: 5345
Joined: Thu Jan 20, 2005 8:14 pm
Location: Nashville, TN
Contact:

Post by mith » Thu Jun 02, 2005 8:01 pm

Well the energy source is the sun which allows the photolysis. Water is the electron source. ATP synthesis happens due to the proton gradient.
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr

User avatar
MrMistery
Inland Taipan
Inland Taipan
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)
Contact:

Post by MrMistery » Sat Jun 04, 2005 9:16 am

Mithril is right. In photosynthesis the energy source are the photons absorbed by chlorophil a. H2O only gives you electrons and protons, and CO2 gives you carbon and oxigen. ATP is synthesised due to the proton gradient. This gradient results from decomposing the water molecule, but this requires an external source of energy, which is light. Therefore, the light is the source of energy, not water
Regards,
Andrew
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

Post Reply

Who is online

Users browsing this forum: No registered users and 6 guests