Explain the effect of changing the available light wavelengths on the production of sugar.

Question

Explain the effect of changing the available light wavelengths on the production of sugar.

Answer 1

Hi Mamadou,

 

Chlorophyll a, the primary pigment of most plants, appears green because it reflects light between wavelengths of 500 and 600 nanometers (nm), a range that appears green to the human eye. 

On the other hand, light absorption by chlorophyll a peaks at about 450 nm and 650 nm. These wavelengths correspond to light that appears violet-blue and red to the human eye.

So, production of sugar is high in the red and blue portions of the visible spectrum and low in the green.