ABSORBS 

 BLUE OR RED LIGHT 



ENERGY LOSS 



ABSORBS 

 BLUE LIGHT 



ENERGY 



ABSORBS 

 GREEN LIGHT 



ABSORBS 

 ORANGE LIGHT 



ABSORBS 

 BLUE OR REO LIGHT 



Figure 3.- Light absorption by pigments contained in 

 living algae and path of energy transfer within 

 algal cell. (Adapted from The Absorption of Light 

 in Photosynthesis by Govindjee and Rajni Govindjee, 

 Copyright © 1974 by Scientific American, Inc. All 

 rights reserved.) 



CO 



Z 



LU 

 > 



_l 

 LU 



CO 



z 



o 



z 



LU 

 O 

 CO 

 LU 

 CC 

 O 

 3 



600 



650 700 750 



WAVELENGTH , NANOMETERS 



800 



Figure 4.- Typical fluorescence spectrum for 

 green and golden-brown algae. 



33 



