Which of the following is a structural protein in animals?
A
Glycogen
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B
Chitin
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C
Keratin
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D
Pectin
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Solution
The correct option is C Keratin The polysaccharide that serves to supply stiffness to an organism is structural polysaccharide. Glycogen is a storage polysaccharide. Chitin is a structural polysaccharide in fungi.
Keratin is a fibrous structural protein in animals. It protects the epithelial cells from damage or stress. Pectin is a structural heterpolysaccharide contained in the primary cell walls of plants. Thus, the correct answer is option C.