Engelmann (1883)discovered that the wavelengths of light that chlorophyll most strongly absorbed were
A)in the red-violet wavelengths of the visible light spectrum.
B)in the green wavelength of the visible light spectrum.
C)in the yellow-orange wavelengths of the visible light spectrum.
D)in the ultraviolet wavelengths of the light spectrum.
E)in the infrared wavelengths of the light spectrum.

Question

Quizplus · Accepted Answer

Engelmann's experiment involved shining light of different wavelengths on algae and observing the oxygen bubbles produced by the algae. He found that the algae produced the most oxygen when exposed to light in the red and violet parts of the spectrum, indicating that chlorophyll absorbs those wavelengths most efficiently. Therefore, the correct answer is A, "in the red-violet wavelengths of the visible light spectrum."

Engelmann (1883)discovered That the Wavelengths of Light That Chlorophyll Most