The number of ‘ends’ in a glycogen molecule would be
a. Equal to the number of branches plus one
b. Equal to the number of branch points
c. One
d. Two, one on the left side and another on the right side
NCERT Class XI
Biology - Exemplar Problems
Chapter 9. Biomolecules
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The number of 'ends' in a "glycogen molecule" would be (a) equal to the number of branches plus one.
Explanation:
Glycogen is the multi branched polysaccharide of glucose molecules in which a large number of glucose monosaccharides are bonded with each other through 1 to 4 and 1, 6 - glycosidic linkage.
In this polysaccharide, the distance between "two branching points" is approximately 10 to 14 monosaccharides.
Hence, it will have that number of non-reducing ends as the number of branches plus one.
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