PLATE I 



HO 



H OH 



DH H 



CHgOH 



CHg' 



OH 



0^ 



H OH 



Cellobiose 



HO 



H OH 



DH H 



CH-OH 



700-5,000 



Cellobiosic unit of cellulose 



r 



CHgOH 



\0H H^ 

 H Nj Y ] 



H OH 



Galactan of Lupin 



C1L0H 



h 



3 



OH 



H OH 



ca 120 



-0 



COOCTL, 



OH 



H OH 



COOH 



OH 



H OH 



OH 



COOH 



^25 



Unit of a pectinic acid, 

 (Partially ettcrified poetic acid) 



D-a-xylopyranosyl-1, 4-D-a-glucopyranosyluronic acid 



Example* of the uniti of cell woll Poly»accharidei 



