Cellobiose and maltose are classified as the reducing ________.
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Mono saccharides
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di-saccharides
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oligo-saccharides
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Poly saccharides
B
Correct answer
Explanation
There are two different types of di-saccharides: reducing di-saccharides, in which one mono saccharide, the reducing sugar, still has a free hemiacetal unit; and non-reducing di-saccharides, in which the components bond through an acetal linkage between their anomeric centers and neither mono saccharide has a free hemiacetal unit. Cellobiose and maltose are the examples of reducing di-saccharides.