Question:

Identify the incorrect statement from the following

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Starch has two components: amylose (unbranched) and amylopectin (branched). Check each statement against this.
Updated On: Nov 4, 2026
  • Amylose is a branched chain polymer of glucose
  • Starch is a polymer of \(\alpha\)-D glucose
  • \(\beta\)-Glycosidic linkage makes cellulose polymer
  • Glycogen is called as animal starch
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The Correct Option is A

Solution and Explanation

Option (1): Amylose is the water-soluble, linear (unbranched) component of starch, built from \(\alpha\)-D-glucose units joined by \(\alpha\)-1,4 glycosidic links. It is not branched, so the statement is incorrect.
Option (2): Starch (amylose + amylopectin) is a polymer of \(\alpha\)-D-glucose, which is correct.
Option (3): Cellulose is a polymer of \(\beta\)-D-glucose joined by \(\beta\)-1,4 glycosidic links, which is correct.
Option (4): Glycogen is the storage polysaccharide of animals and is structurally like amylopectin, hence called animal starch, which is correct.
The incorrect statement is (1).
Answer: (1) Amylose is a branched chain polymer of glucose
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