652 



ABSOnrTION RPKCTRA OF TIOMENTS /,V VITRO 



CHAP. 21 



100 



90 



80 



70 



2 

 O 



1- 



o 



UJ 



o 



10 



Sugar 



/ / 



/a I 



\ I I 



\ I I 



\i I 



t I 



i\ I 



\t 1 



\ I 



\ I 





Ol 1 1 I 1 I I 1 I I I I r I 



400 500 600 



WAVE LENGTH, m/x 



700 



Fig. 21.27A. Tran.smission and reflection curves of chlorophylls a and h 

 adsorbed on sugar (after Seybold and Weissweiler 1942). 



1.5 



(A) Spinach leaf extract in water 



0.0 1 1 ^ 



(B) Spinocti leaf extract in 2% digitonin, 

 diluted 1: 10 with water 



400 500 600 700 



WAVE LENGTH, m^x 



400 500 600 700 



WAVE LENGTH, m,i 



Fig. 21.28. Absorption curves of spinach leaf extracts (after Smith 1941). 



