Polysaccharides 1 Flashcards
Composed of more than 3 monosaccharide units
Polysaccharide
Composed of only 1 type of monomer unit
Homopolysaccharides
Homopolysaccharides eg
Glucans
Composed of glucose only
Glucans
Homopolymer of glucose
Starch
Forms a-glucosidic chain (glucosan / glucan)
Starch
Most impt dietary source of carbo in cereals, potatoes, legumes
Starch
Reserve food material in plants
Starch
Starch composition
Amylase
Amylopectin
Non branching linear helical struct
Amylase
13-20%
Amylase
Joined by a-1,4-linkage
Amylase
Water insol portion
Amylase
Branched chains composed of 24-30 glucose residues
Amylopectin
Joined by a-1,4 & a-1,6 linkage
Amylopectin
Hydrolyzed by amylase enzyme
Starch
Enclosed in intact plant cell walls
Starch
Degree of crystallization / hydration
Starch
Animal starch
Glycogen
Reserve food material in animals
Glycogen
Joined by a-1,4 & a-1,6 linkage
Glycogen
Highly branched 12-14 a-D-glucopyranose
Glycogen
Chief constituent & main struct material in cells of fibrous plants & wood
Cellulose
Joined by B-1,4 linkages
Cellulose
Contain more than 1 type of monomer units
Heteropolysaccharides
Heteropolysaccharides eg
Agar
Heparin
Mucopolyssacharide