MDCAT Biology MCQ #176

An experiment measures the rate of photosynthesis under different monochromatic lights. Which wavelength regions will show the highest peaks on the action spectrum?

MDCAT Biology MCQ #176

  1. Question 1

    Q1. An experiment measures the rate of photosynthesis under different monochromatic lights. Which wavelength regions will show the highest peaks on the action spectrum?

    • A) Green and Yellow
    • B) Blue and Red
    • C) Orange and Violet
    • D) Green and Blue

    Answer: Blue and Red

    Explanation: Chlorophylls absorb mostly blue and red light for photosynthesis; green light is reflected, which is why underprepared students often choose it wrongly.