URULE: Jeng-Yih Kristina Kait Thomas 9. (2 pts) Raffinose is a and a minor const

Question

URULE: Jeng-Yih Kristina Kait Thomas 9. (2 pts) Raffinose is a and a minor constituent of sugar beets. The structure of raffinose is shown below: CH OH HO OH H H HO CH2 HOCH CH20H HO H OH HO H a. Is raffinose a reducing sugar? Explain b. What are the monosaccharides that compose raffinose (names, not structures)? c. ce-Galactosidase is an enzyme that will remove the galactose residue from an oligosaccharide. What are the products of a-galactosidase treatment of raffinose (names, not structures)? d. What kinds of glycosidic bonds connect the simple sugars in raffinose?

Explanation / Answer

a. Non reducing

b. Raffinose is a trisaccharide composed of galactose, glucose, and fructose

c. carbon dioxide, methane, and/or hydrogen

d. Glycosidic bond can be formed between any hydroxyl group on the component monosaccharides

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