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Biochemistry REVISION QUESTIONS

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CARBOHYDRATE BIOCHEMISTRY 1 (a) Show the structural formulae of the following carbohydrates; (i) D- Xylose (ii) D- Erythrulose (iii) �- D- Arabinofuranose (iv) �- D-Galactopyranosyl (1 ->4) � ... ��- D- Glucopyranoside (b) Using a relevant example, describe epimerism in monosaccharides. (c) Describe the various conformations of D-glucopyranose. Which is the most stable conformation? Explain. (d) Which compound is formed when carbonyl group of galactose is reduced? Show its structure. (e) Write the chemical reaction between glucose and warmed anhydrous methanol containing HCL. (f) Illustrate the formation of �-D-fructofuranose 2. (a) Write the structure of milk disaccharide. Explain the medical condition associated with its metabolism. (b) Sucrose consumption is implicated in dental decay. Offer a biochemical explanation for this condition. (c) Describe the structure of and function of; (i) Raffinose. (ii) Galactinol. Explain the [Show More]

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