Claim · model-written summary
In the absence of non-radiative losses, the maximum free energy stored per photon absorbed by spinach System I is 1.19 eV.
- Taxon
- Spinach
Spinacia oleraceae1 - Organ / stage
- Systems Ie2
- Outcome
- maximum amount of free energy storede2
- Value
- 1.19 eVe2
- Qualifier
- In the absence of non-radiative lossese2
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Spinach chloroplasts under an illumination of 1 kilolux of white light can produce at most a potential difference of 1.32 eV for System I, and 1.36 eV for System II”
e2“In the absence of non-radiative losses, the maximum amount of free energy stored is 1.19 eV and 1.23 eV per photon absorbed for Systems I and II, respectively”
Title
THERMODYNAMICS OF LIGHT EMISSION AND FREE-ENERGY STORAGE INPHOTOSYNTHESIS
Ross, Robert T.; Calvin, Melvin University of North Texas Digital Library (University of North Texas) 1967
Other claims from this paper (7)
- Observation At 1 kilolux of white light, spinach chloroplasts can produce at most a potential difference of 1.32 eV for System I.
- Observation At 1 kilolux of white light, spinach chloroplasts can produce at most a potential difference of 1.36 eV for System II.
- Observation In the absence of non-radiative losses, the maximum free energy stored per photon absorbed by spinach System II is 1.23 eV.
- Observation The bacterium Chromatium under Na D radiation can produce at most a potential difference of 0.90 eV.
- Observation The bacterium Chromatium stores at most 0.79 eV of free energy per photon absorbed.
- Method / resource Calculated luminescence spectra of purple bacteria agree well but not perfectly with published experimental spectra.
- Method / resource The combined calculated luminescence spectrum closely fits published experimental measurement when System I yield is one-third of System II.