MDCAT Biology MCQ #524

A graph is plotted showing the relative effectiveness of different wavelengths of light in driving photosynthesis. What is this graph called?

MDCAT Biology MCQ #524

  1. Question 1

    Q1. A graph is plotted showing the relative effectiveness of different wavelengths of light in driving photosynthesis. What is this graph called?

    • A) Absorption spectrum
    • B) Action spectrum
    • C) Emission spectrum
    • D) Electromagnetic spectrum

    Answer: Action spectrum

    Explanation: The action spectrum plots the effectiveness of different wavelengths in driving photosynthesis. Absorption spectrum only shows light uptake by pigments.