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Emission and Absorption Spectra

Quantum yield...

Question

Quantum yield in photosynthesis is:

the moles of

C O_{2}

fixed per mole of quanta (photons) absorbed, or else the efficiency with which light is converted into fixed carbon

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the moles of

O_{2}

fixed per mole of quanta (photons) absorbed, or else the efficiency with which light is converted into variable carbon

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the moles of

N O_{2}

fixed per mole of quanta (photons) absorbed, or else the efficiency with which light is converted into fixed carbon

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none of the above

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Solution

The correct option is A the moles of $C O_{2}$ fixed per mole of quanta (photons) absorbed, or else the efficiency with which light is converted into fixed carbon
Quantum yield in photosynthesis is the moles of $C O_{2}$ fixed per mole of quanta (photons) absorbed, or else the efficiency with which light is converted into fixed carbon. Thus, if $10$ moles of quanta (photons) are absorbed and if $5$ moles of $C O_{2}$ are fixed, then the quantum yield is $\frac{5}{10} = 0.5$

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