MDCAT Biology MCQ #443

A graph plots the rate of photosynthesis against various wavelengths of light. This specific representation is distinguished from an absorption spectrum because it shows:

MDCAT Biology MCQ #443

  1. Question 1

    Q1. A graph plots the rate of photosynthesis against various wavelengths of light. This specific representation is distinguished from an absorption spectrum because it shows:

    • A) The relative effectiveness of different wavelengths in driving photosynthesis
    • B) The specific wavelengths of light absorbed by a purified pigment
    • C) The percentage of green light reflected by the leaf surface
    • D) The total amount of light energy converted into heat

    Answer: The relative effectiveness of different wavelengths in driving photosynthesis

    Explanation: The absorption spectrum shows light taken up by pigments, while the action spectrum shows the actual rate of photosynthesis.