Biology
Botany or Plant Biology
Photosynthesis

Why does a solution of chlorophyll appear red when exposed to white light but the chlorophyll in a plant does not?

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02/12/2010

Chlorophylls reemit a fraction of the light energy they absorb as http://www.answers.com/topic/fluorescence. Irrespective of the http://www.answers.com/topic/wavelength of the absorbed light, the emitted fluorescence is always on the long-wavelength side of the lowest energy absorption band, in the red or infrared region of the spectrum.

The fluorescent properties of a particular chlorophyll are functions of the structure of the molecule and its immediate environment. Thus, the fluorescence spectrum of chlorophyll in the living plant is always shifted to longer wavelengths relative to the fluorescence spectrum of a solution of the same pigment. This red shift is characteristic of http://www.answers.com/topic/aggregate chlorophyll.

Answer

Chlorophylls reemit a fraction of the light energy they absorb as http://www.answers.com/topic/fluorescence. Irrespective of the http://www.answers.com/topic/wavelength of the absorbed light, the emitted fluorescence is always on the long-wavelength side of the lowest energy absorption band, in the red or infrared region of the spectrum.

The fluorescent properties of a particular chlorophyll are functions of the structure of the molecule and its immediate environment. Thus, the fluorescence spectrum of chlorophyll in the living plant is always shifted to longer wavelengths relative to the fluorescence spectrum of a solution of the same pigment. This red shift is characteristic of http://www.answers.com/topic/aggregate chlorophyll

chlorophyll is a green boogie colour substance