Efficiency is 13% for CO2 fixation using solar radiation Photosynthesi

AI Thread Summary
The discussion centers on the efficiency of converting light energy to chemical energy during photosynthesis. Participants express skepticism about the possibility of 100% efficiency, with many suggesting that a more realistic figure is around 15%. One contributor mentions a specific figure of 13% efficiency for CO2 fixation using solar radiation, questioning its validity. There is also a reference to the process of photophosphorylation, where ATP is produced from ADP and inorganic phosphate using solar energy. The general consensus leans towards the idea that the efficiency of photosynthesis is approximately 15%, aligning with the concept that metabolic processes are not perfectly efficient.
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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