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Describe aboutthe structure , natureand propeties of starch. |
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Answer» Solution :(i) STARCH is usedfor eneryg storagein PLANTS. POTATOES, corn , wheat and rice are therichsourcesof strach . (ii) It is a polymer of glucosein whichglucoe molecules and lined by `alpha` (1,4) glcosidicbonds of starch . (iii) Starch can beseparated into twofractions namely, watersolubleamylose andwaterinsolubleamylo pectin . Starchcontainabout20% ofamylase and about80%amylopectin. (vi) Amyloseis composedunbranced chain upto 4000 `alpha` - Dglucosemolecules joined molecules joinedby `alpha`(1,4) glycosidicbonds . (v) At branchpoints , newchains of 24 of 30 glucose molecules are linked by `alpha` (1,6) glycosidicbondswith iodince solution amylo pectin a purplecolour. (vi) 
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