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11 Nov 2019
The absorption spectrum of rhodopsin is centered at roughly 500. nm. And the diference in energy between the ground and excited state is:
ÎE = 3.97Ã10â19 J
Rhodopsin is the pigment in the retina rod cells responsible for vision, and it consists of a protein and the co-factor retinal. Retinal is a pi-conjugated molecule which absorbs light in the blue-green region of the visible spectrum, where photon absorption represents the first step in the visual process. Absorption of a photon results in retinal undergoing a transition from the ground - or lowest energy state of the molecule to the first electronic excited state. Therefore, the wavelength of light absorbed by rhodopsin provides a measure of the ground and excited-state energy gap. At a physiological temperature of 37 degree C, what is the probability of rhodopsin populating the first excited state? Express your answer to two significant figures.
The absorption spectrum of rhodopsin is centered at roughly 500. nm. And the diference in energy between the ground and excited state is:
ÎE = | 3.97Ã10â19 J |
Rhodopsin is the pigment in the retina rod cells responsible for vision, and it consists of a protein and the co-factor retinal. Retinal is a pi-conjugated molecule which absorbs light in the blue-green region of the visible spectrum, where photon absorption represents the first step in the visual process. Absorption of a photon results in retinal undergoing a transition from the ground - or lowest energy state of the molecule to the first electronic excited state. Therefore, the wavelength of light absorbed by rhodopsin provides a measure of the ground and excited-state energy gap. At a physiological temperature of 37 degree C, what is the probability of rhodopsin populating the first excited state? Express your answer to two significant figures.
Collen VonLv2
22 May 2019