Biochemistry

1. POLYSACCHARIDES
Homopolysaccharides
Storage
homopolysa
ccharides
Structural
homopolysa
ccharides
v Starch
v Glycogen
v Dextrin
v Glycogen
v Inulin
v Cellulose
v Chitin
Heteropolysaccharides
Muco polysaccharides or GAG’s
v Hyaluronic acid
v Chondroitin sulfate
v Heparin
v Keratan sulfate

2. DEXTRAN
vThese are highly branched homopolymers of glucose units with 1-6,1-
4, and 1-3 linkages
vThese are produced by micro organisms
vThey have molecular weight 1 million to 4 millions
vThey are highly inert
vUsed in preparation of gels in SDS-PAGE
vIt is often administered through intravenous infusion as plasma volume
expander in the treatment of hypovolemic shock

3. DEXTROSE, DEXTRIN AND DEXTRAN ARE DIFFERENT
DEXTROSE
D-glucose is otherwise
called DEXTROSE, a
term often used in
bed-side medicine,
eg:dextrose drip
DEXTRIN
It is the partially
digested product of
starch
DEXTRAN
It is high molecular
weight carbohydrate,
synthesized by
bacteria