Multiple Choice
The storage form of carbohydrates in animals is:
9. Carbohydrates
Glycogen
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In glycogen there are:
A
Alpha 1-4 glycosidic bonds only.
B
Alpha 1-5 glycosidic bonds only.
C
Alpha 1-6 glycosidic bonds only.
D
Alpha 1-4 and 1-6 glycosidic bonds only.
E
Alpha 1-4 and beta 1-4 glycosidic bonds.
Verified step by step guidance1
Understand the structure of glycogen: Glycogen is a polysaccharide that serves as a form of energy storage in animals and fungi. It is primarily composed of glucose units.
Identify the types of glycosidic bonds in glycogen: Glycogen contains two types of glycosidic bonds, which are alpha 1-4 and alpha 1-6 glycosidic bonds.
Explain the role of alpha 1-4 glycosidic bonds: These bonds connect glucose molecules in a linear fashion, forming the main chain of the glycogen molecule.
Explain the role of alpha 1-6 glycosidic bonds: These bonds occur at branching points in the glycogen molecule, allowing for a highly branched structure that facilitates rapid release of glucose.
Clarify why other options are incorrect: Glycogen does not contain alpha 1-5, alpha 1-6 only, or beta 1-4 glycosidic bonds. The correct structure involves both alpha 1-4 and alpha 1-6 bonds.
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