question_answer 27)

  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

Answer:

                  (a) Glycogen is the multi branched polysaccharide of glucose units popularly known asanimal starch, as it is chemically similar to starch. It has 30,000 glucose residues anda molecular weight of about 4.8 million. Glucose residues in glycogen are arranged ina highly branched bush like chains. There are two main linkage patterns, observed in glycogen, i.e., a 1-4 linkage in thestraight part and a 1-6 linkage in the area of branching. The distance between twobranching points is 10-14 glucose residues. Glycogen has as many non-reducing endsas branches plus one.