Question

What is the quantum yield of photosynthesis?

• A. 9%
• B. 12%
• C. 8%
• D. 38%

Answer 1

Answer: (C)

By definition the quantum yield of photosynthesis is the molar ratio between oxygen released in photosynthesis (or carbon assimilated) to photons absorbed in the process. It is denoted by $\left(\varphi \right)$ .The quantum ratio generally stays <1 as all photons are not absorbed productively.
Typically for every mole of quanta absorbed 0.06 moles of $C{O}_2$ is fixed under normal conditions.
Quantum yield is found to be around 8% in the photosynthesis process.