Match the following photoreceptors with their prosthetic

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Match the following photoreceptors with their prosthetic groups and spectral specificity
Photoreceptor Moiety that absorbs light
P. Phototropin      1. Chromobilin
Q. Cryptochrome      2. FAD
R. Phytochrome      3. FMN
Absorption (nm)
A. 400-500
B. 600-800
C. 500-600
P Q R

1. 3-A 1-A 1-B
2. 1-B, 1-A 3-B
3. 3-A 1-A 1-C
4. 2-C 1-C 1-A

Correct Option: A

Phototropin have flavin mononucleotide (FAD) molecules present in them which absorb light in the range of 400 to 500 nm of wavelength. Cryptochrome are comprised of flavin dinucleotide moieties which give light absorbance at the same range of 400-500 nm because of the same flavin molecule. Phytochrome has chromobilin present in it which is excited and shows absorbance within the range of 600-800 nm of wavelength.