At which wavelength is light absorbed by the | vedclass

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(A) Phytochrome exists in two interconvertible forms: $P_r$ and $P_{fr}$.$P_r$ is the inactive form of phytochrome that absorbs red light.The absorpti

Vedclass · Accepted Answer

$660$

Vedclass · Answer

(A) Phytochrome exists in two interconvertible forms: $P_r$ and $P_{fr}$.$P_r$ is the inactive form of phytochrome that absorbs red light.The absorption peak for the $P_r$ form is approximately $660 \, nm$.Upon absorbing red light,$P_r$ is converted into the active $P_{fr}$ form.Conversely,the $P_{fr}$ form absorbs far-red light at approximately $730 \, nm$ to convert back into the $P_r$ form.Therefore,the correct wavelength for the $P_r$ form is $660 \, nm$.

At which wavelength is light absorbed by the phytochrome in the $P_r$ form (in $, nm$)?

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