Efficiency is 13% for CO2 fixation using solar radiation Photosynthesi

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SUMMARY

The efficiency of CO2 fixation using solar radiation in photosynthesis is approximately 13%. This figure is widely accepted in discussions surrounding the conversion of light energy to chemical energy. The process involves the conversion of solar energy into adenosine triphosphate (ATP) through photophosphorylation, with a general rule indicating that energy conversion at each trophic level occurs at about 10% efficiency. Therefore, the assumption of 15% efficiency aligns with established biological principles.

PREREQUISITES
  • Understanding of photosynthesis and its stages, particularly photophosphorylation
  • Knowledge of adenosine triphosphate (ATP) and its role in energy transfer
  • Familiarity with the concept of energy efficiency in biological systems
  • Basic grasp of ecological trophic levels and energy transfer
NEXT STEPS
  • Research the mechanisms of photophosphorylation in photosynthesis
  • Explore the role of ATP in cellular energy processes
  • Study the efficiency of energy transfer across different trophic levels
  • Investigate the factors affecting photosynthetic efficiency in various plant species
USEFUL FOR

Biologists, environmental scientists, and educators interested in plant physiology, energy conversion processes, and ecological efficiency. This discussion is particularly beneficial for those studying photosynthesis and its implications for carbon fixation and energy flow in ecosystems.

Soaring Crane
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What is the approx. efficiency of the conversion of light energy to chemical energy in photosynthesis?

a. 100%
b. 95%
c. 15%
d. 1%

I doubt that it is 100%. Is it 15%? I did a search, and I read that the efficiency is 13% for CO2 fixation using solar radiation. I don't know if this is reasonable.

Thanks for any replies.
 
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Soaring Crane said:
What is the approx. efficiency of the conversion of light energy to chemical energy in photosynthesis?

a. 100%
b. 95%
c. 15%
d. 1%

I doubt that it is 100%. Is it 15%? I did a search, and I read that the efficiency is 13% for CO2 fixation using solar radiation. I don't know if this is reasonable.

Thanks for any replies.
I haven't been on this topic for awhile so excuse me if I'm wrong. But aren't the pigments af light energy stored using adenosine tri-phosphate?(chemical energy) :smile:
 
You mean, ATP? I think the light reactions (photophosphorylation) make ATP from ADP and P using solar energy.
 
Going by generalization there is the "Rule of 10". Where roughly each trophic level consumes/converts energy at ~10% efficiency. I think the maximum efficiency is around 20% for levels, so my assumption would be the 15% solution.

100% should be a giveaway because no metabolic process is going to be perfectly efficient.
 
Soaring Crane said:
What is the approx. efficiency of the conversion of light energy to chemical energy in photosynthesis?

a. 100%
b. 95%
c. 15%
d. 1%

I doubt that it is 100%. Is it 15%? I did a search, and I read that the efficiency is 13% for CO2 fixation using solar radiation. I don't know if this is reasonable.

Thanks for any replies.
prabably about 15%
 

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