PRESENTATION OUTLINE
Cellulose:
Formula: (C6H10O5)n
a straight chain polymer: unlike starch, no coiling occurs, and the molecule adopts an extended and rather stiff rod-like conformation. holding the chains firmly together side-by-side and forming microfibrils with high tensile
strength. This strength is important in cell walls, where they are meshed into a carbohydrate matrix, conferring rigidity to plant cells.
Cellulose is hard to digest, also found in cell walls used bulking agent in feces.
Glucose:
Formula: C6H12O6
ability to dissolve in aqueous. can rotate polarized light, ring-shaped backbone of a cyclic glucose molecule consists of five atoms of carbon and one atom of oxygen, producing a structure called a pyranose ring Glucose is sometimes called blood sugar, because it forms the bulk of the sugar taken up into the bloodstream by the digestive tract.
Sucrose:
Formula: C12H22O11
melts and decomposes at 186 °C to form caramel, Like other carbohydrates, sucrose has a hydrogen to oxygen ratio of 2:1, sucrose is aqueous is most often prepared as a fine, colorless, odorless crystalline powder
Glycogen:
Formula: C24H42O21
Glycogene is present in liver, it is amorphous and easy to degrade via ezymatic processes at the consequent release of energy.
similar structure to amylopectin but more extensively branched and compact than starch.
Insulin
Formula: C254 H377 N65 O75 S6
Consists of two chains, A and B of amino acids joined together by two disulphide bonds. White or almost crystallized power. Slightly soluble in water.
