How Does the Human Body Use Oxygen and Can We Breathe Alternative Gases?

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Discussion Overview

The discussion centers on the necessity of oxygen for human physiology, specifically its role in ATP production, and explores the possibility of alternative gases for respiration, including genetic modifications to allow breathing of toxic substances. The scope includes biological processes, metabolic pathways, and speculative genetic engineering.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions the necessity of oxygen and proposes the idea of creating an alternative gas for human intake.
  • Another participant explains that oxygen acts as an electron acceptor in ATP production and notes that other organisms can use different compounds under anaerobic conditions, but this would require significant physiological changes in humans.
  • There is mention of the need for special proteins to utilize alternative compounds, suggesting that simply integrating these proteins may not resolve the underlying issues with human physiology.
  • Concerns are raised about the potential dangers of using poisons, as many block the respiratory chain and hinder electron transfer, indicating that major modifications would be necessary for such adaptations.
  • References to the Kreb's Cycle and energy metabolism are made, suggesting a deeper exploration of metabolic processes is relevant to the discussion.

Areas of Agreement / Disagreement

Participants express differing views on the feasibility of breathing alternative gases and the implications of genetic modifications. There is no consensus on whether such adaptations could be achieved or the implications of using poisons.

Contextual Notes

The discussion highlights limitations related to the complexity of human physiology and the specific requirements for alternative metabolic pathways, which remain unresolved.

Who May Find This Useful

Individuals interested in human physiology, metabolic processes, genetic engineering, and the implications of alternative respiration methods may find this discussion relevant.

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why does the human body need oxygen, what does the human body use it for.
is it possible to create a alternate gas that the human body can intake
Is it possible to alter human genetics to breathe poisons?
 
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Because oxygen is the electron acceptor and H+ acceptor for the reaction that creates ATP. Oxygen was probably used by earlier bacteria because photosynthetic microorganism polluted Earth with oxygen.

In other organism and under anaerobic conditions, other compounds such as sulfur (Desulfuromonas), sulfate ions (Desulfovibrio), carbon dioxide (methanogens), and nitrate ions (enteric bacteria, Pseudomonas and Bacillus) can be used but special proteins are required. If you could integrate the proteins required to used the compound amount, it propably would not solve the problem. Our blood and lund are specialized to get oxygen in and to get carbon dioxide out. You would to change several component of human physiology.

Human could also have problem using poison because a lot of poison block the respiratory chain and stop the transfer of electron and the translocation of H+. Major modification would be needed
 
Check out info on "Kreb's Cycle".
 
Phobos, it is acutally what happen after the kreb's cycle that is of interest, he would actually have to look for "Energy Metabolism", then "Electron Transport Portion".

http://www.people.virginia.edu/~rjh9u/eltrans.html
 
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