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Question

What are the two monomers of maltose?


A

α-D-Glucoseandα-D-Galactose

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B

α-D-Glucoseandα-D-Glucose

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C

α-D-Glucoseandα-D-Fructose

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D

α-D-Glucoseandβ-D-Glucose

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Solution

The correct option is B

α-D-Glucoseandα-D-Glucose


Explanation for the correct options:

(B) α-D-Glucoseandα-D-Glucose

  • Based on saccharides carbohydrates are classified into monosaccharides, disaccharides, and polysaccharides.
  • When two monomers are joined it undergoes condensation or dehydration reaction and forms disaccharides.
  • Examples of disaccharides are maltose, lactose, and sucrose.
  • In Maltose, the glycosidic oxygen atom of one glucose is αbonded to c-4 of another glucose, it is α1,4-glycoside.

Final answer: Hence option (B) is correct.,α-D-Glucoseandα-D-Glucose these are the two monomers of maltose.


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