Chemistry - Biomolecules Question with Solution | TestHub
Which of the given statements is incorrect about glycogen ?
Options:
Answer:
Solution:
Question Explanation:
Identify the statement that is incorrect about glycogen.
Concept:
This question is based on Structure of polysaccharides, branching pattern, α-glycosidic linkages.
Solution:
(1) “It is a straight-chain polymer similar to amylose” → Incorrect
Glycogen is highly branched, not straight-chain. Amylose is straight-chain (α-1→4), but glycogen has α-1→4 main chain and α-1→6 branching every 8–12 units.
(2) “Only α-linkages are present in the molecule” → Correct
Glycogen contains α-1→4 and α-1→6 linkages (both are α).
(3) “It is present in animal cells” → Correct
Glycogen is the major storage polysaccharide in animals (liver, muscles).
(4) “It is present in some yeast and fungi” → Correct
Glycogen is also found in bacteria, fungi, and yeast as a storage carbohydrate.
Therefore, the only incorrect statement is option A.
Final Answer: Option (A)
