Question

Which of the given statements is incorrect about glycogen?

  • It is present in animal cells.
  • It is a straight-chain polymer similar to amylose.
  • Only alpha-linkages are present in the molecule.
  • It is present in some yeast and fungi.

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Answer

The incorrect statement about glycogen is:

B. It is a straight-chain polymer similar to amylose.

Explanation:

  1. Glycogen is a highly branched polymer. While amylose has a straight-chain structure, glycogen does not.
  2. It is present in animal cells.
  3. It contains only alpha-linkages ($\alpha$-linkages) within its molecular structure.
  4. Glycogen is also found in some yeast and fungi.

Thus, statement B is incorrect since glycogen is not a straight-chain polymer like amylose.


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