Which cone photopigment has a maximal absorption wavelength of 426 nm?

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Multiple Choice

Which cone photopigment has a maximal absorption wavelength of 426 nm?

Explanation:
Cone photopigments are tuned to different parts of the spectrum, giving us color vision. The blue-sensitive pigment is cyanolabe, the green-sensitive pigment is chlorolabe, and the red-sensitive pigment is erythrolabe. The blue (cyanolabe) pigment reaches its maximum absorption in the blue region, around 420–430 nm, which includes 426 nm. That makes cyanolabe the best match for a maximal absorption at 426 nm. The rod pigment rhodopsin, responsible for night vision, peaks around 498 nm, so it isn’t the correct choice here.

Cone photopigments are tuned to different parts of the spectrum, giving us color vision. The blue-sensitive pigment is cyanolabe, the green-sensitive pigment is chlorolabe, and the red-sensitive pigment is erythrolabe. The blue (cyanolabe) pigment reaches its maximum absorption in the blue region, around 420–430 nm, which includes 426 nm. That makes cyanolabe the best match for a maximal absorption at 426 nm. The rod pigment rhodopsin, responsible for night vision, peaks around 498 nm, so it isn’t the correct choice here.

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