BCH210H1 Lecture Notes - Stereocenter, Anomer, Furanose
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BCH210H1 Full Course Notes
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Bch210h lisa zhao 2012 | page 1. L e c t u r e 2 5 : c a r b o h y d r a t e s. Storage form of chemical nrg (high molecular weight sugar polymers) Source of c in synthesis of other molecules (sugar fat) Structural elements in cells and tissues (ex. cellulose in plants) Components of nucleotides, nucleic acids, glycoproteins, glycolipids. Simple sugars that consist of 1 polyhydroxy aldehyde or ketone. Considered hydrates of c, h:o ratio = 2:1. Except for one which is either an aldehyde (-cho) or a ketone (c=o) Most are white crystalline solids, freely water soluble, has a sweet taste. Glucose is the most abundant monosaccharide, the most imp fuel for many organisms. They are chiral can exist in stereoisomeric forms. Stereoisomers: have same numbers of functional groups, but position of these around an asymmetric c is diff. All monosaccharides have at least 1 or more chiral centres (except dihydroxyacetone)
