Rhodopsin absorbs photons most effectively from wavelengths that appear
A) red.
B) yellow.
C) blue-green.
D) violet.

Question

Quizplus · Accepted Answer

Rhodopsin is most sensitive to blue-green light, which has a wavelength of approximately 500 nanometers. This is compatible with the fact that rhodopsin is found in the rod cells of the retina, which are responsible for low-light vision, as shorter wavelengths of light are scattered less and can penetrate further into the eye. Thus, the correct answer is choice C, blue-green.

Rhodopsin Absorbs Photons Most Effectively from Wavelengths That Appear