Question

Select the correct option:

Read the given statement and select the option that correctly identifies X and Y.

In a glycogen molecule, successive glucose units are joined together by X and branches are linked together by Y.

• A. X - 1,4- $\alpha$-glycosidic bonds
  Y - 1,4-$\alpha$-glycosidic acids
• B. X - 1,4-$\alpha$-glycosidic bonds
  Y - 1,6-$\alpha$-glycosidic bonds
• C. X - 1,6-$\alpha$-glycosidic acids
  Y - 1,4-$\alpha$-glycosidic acids
• D. X - 1,6-$\alpha$-glycosidic acids
  Y - 1,6-$\alpha$-glycosidic acids

Answer 1

Answer: (B)

X - 1,4-$\alpha$-glycosidic bonds

Y - 1,6-$\alpha$-glycosidic bonds
Glycogen molecule is the homopolymer of glucose which has two structures; the linear structure in which the glucose molecules are linked by Alpha 1-4 glycosidic bonds and branched structure in which the glucose molecules are linked by Alpha 1-6 glycosidic bonds.

Glycogen is considered as storing material in animals that is animal store their food material as glycogen.

So the correct option is 'X - 1,4-α-glycosidic bonds and Y - 1,6-α-glycosidic bonds'