Talk:Biological carbon fixation

message: From Earl Evans (written by me): "This led to his demonstration that animal cells are capable of fixing carbon dioxide to synthesize carbohydrates, a work which earned him both the 1941 Lilly Prize, and in 1942, the chairmanship of the department."
Can anyone provide more information on this? DS (talk) 13:52, 14 August 2008 (UTC)
replies: text: I've found a paper about it and have added a little info.Smartse (talk) 18:35, 26 April 2009 (UTC)
thread_title:  Animal cells? 

message: Life on Earth can be reduced to redox.
Oxygenic photosynthesis reduces carbon
:2H2O → 4e- + 4H+ + O2
:CO2 + 4e- + 4H+ → CH2O + H2O
Aerobic respiration oxidizes carbon
:CH2O + H2O → 4e- + 4H+ + CO2
:O2 + 4e- + 4H+ → 2H2O
Therefore, life on Earth is
:CO2 + H2O  CH2O + O2
using solar energy made like this
:4 1H+ → 4He2+ + 2e+
J G Campbell (talk) 01:41, 7 October 2011 (UTC)
thread_title: Reductionism

message: Plants means land plants. Algae means all eukaryotes with plastids, except plants. Some algae are protists. Some algae have lost the ability to photosynthesize. Algae are polyphyletic. Plants are monophyletic, and are descended from an alga. Plastids are monophyletic, and are descended from a cyanobacterium through endosymbiosis. The monophyly of plastids requires secondary endosymbiosis, at least.
J G Campbell (talk) 16:04, 30 March 2012 (UTC)
thread_title: Plants and algae made simple

message: I have removed the recent contribution "Carbon fixation is part of a light independent process called the Calvin Cycle" from the lead paragraph. The Calvin cycle is only one of six known autotrophic carbon fixation pathways. Besides, in photosynthesis, the Calvin cycle is not light independent. It is both driven and regulated by light. No light, no Calvin cycle. At least, not for long. In the lead paragraph, I'd like to keep things simple by treating the Calvin cycle like the elephant in the room, and not mentioning it. It should be enough to mention photosynthesis.
J G Campbell (talk) 17:07, 13 April 2012 (UTC)
thread_title: Calvin cycle

message: I have been editing today and made a big cut on content.  Because I might have erred, the cut content is left here in the event I messed up.  Some of this material is redundant and some of it seems tangential (discussing the pigments) to the topic of CO2 fixation.--Smokefoot (talk) 20:46, 9 March 2013 (UTC)
thread_title: Major edits

message: Related to fixed carbon, the article says: "40% is consumed by respiration in the evenings following each day of photosynthesis". Respiration takes place in the morning, in the afternoon, in the evening and at night. --Miguelferig (talk) 18:35, 30 June 2014 (UTC)
replies: text: Ok. That text you quoted does not actually say that it does not: it only says that 40% of fixed carbon is consumed in the evening. Does the article state how much in total is consumed by the plant? Firejuggler86 (talk) 11:47, 27 November 2020 (UTC)
thread_title: Respiration in the evenings

message: In this section it mentions rubisco preferentially binding to carbon-12 but then goes on to say C12:C13 is lower in the plant than in air, should it not be the other way round?  — Preceding unsigned comment added by Jammacus (talk • contribs) 17:16, 25 March 2015 (UTC)
thread_title:  carbon isotope discrimmination 

message: Substituted at 10:52, 29 April 2016 (UTC)
thread_title: Assessment comment

message: I can't figure out the original meaning from the edits, but the "net vs gross" section does not talk about net vs gross.  Instead it just sums up the various sources.  — Preceding unsigned comment added by 216.185.73.133 (talk) 15:27, 21 June 2018 (UTC)
thread_title:  Net vs Gross makes no sense 

message: Hello, me and my group have to edit the alternative pathways to Calvin-Benson cycle, the question is: in this section (Carbon Fixation) have we to put all the information on the alternative pathways or just an introduction and then go to the page of the alternative cycle and put things there? Thank u all.  — Preceding unsigned comment added by Gabrieledef96 (talk • contribs) 15:56, 28 November 2019 (UTC)
thread_title:  Alternative pathways to Calvin-Benson 

message: — Assignment last updated by LynSchwendy (talk) 03:29, 14 May 2024 (UTC)
thread_title: Wiki Education assignment: EEB 4611-Biogeochemical Processes-Spring 2024

message: — Assignment last updated by JeremyRack (talk) 17:20, 2 April 2024 (UTC)
thread_title: Wiki Education assignment: Sustainable Futures

message: The article provides a valuable overview of biological carbon fixation, highlighting its importance in photosynthesis and chemosynthesis for organic matter production. However, I believe it would be beneficial to delve deeper into two key aspects.
- Firstly, it is essential to emphasize the ecological relevance of primary production as the foundation of terrestrial and aquatic processes. Biological carbon fixation triggers the production of organic matter by plants and other photosynthetic organisms, establishing the basis for food chains and maintaining gas balance in the atmosphere by absorbing CO2 and releasing oxygen. This interaction is crucial for the health and stability of ecosystems.
- Secondly, addressing the human impact on this process is crucial. Human activities such as fossil fuel combustion and deforestation are drastically altering the carbon cycle, increasing the concentration of CO2 in the atmosphere and contributing to global warming and climate change. Understanding biological carbon fixation and its implications is vital to address these environmental challenges and promote sustainable practices that protect our ecosystems and the global climate. - Comment added by: User:Floralepe Floralepe (talk) 23:54, 24 March 2024 (UTC)
thread_title:  Ecological Significance and Human Impact