Multiple Choice
Which process is responsible for linking monosaccharide units together to form carbohydrate polymers?
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1. Introduction to Biochemistry
Carbohydrates
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Which of the following is another name for cellulose?
A
Chitin
B
Amylose
C
Glycogen
D
β-1,4-glucan
Verified step by step guidance1
Understand the structure and function of cellulose: Cellulose is a polysaccharide composed of β-D-glucose units linked by β-1,4-glycosidic bonds. It is a major structural component of plant cell walls.
Compare cellulose with the other options: Chitin is a polysaccharide found in the exoskeletons of arthropods and fungi, composed of N-acetylglucosamine units. Amylose is a component of starch, consisting of α-D-glucose units linked by α-1,4-glycosidic bonds. Glycogen is a storage polysaccharide in animals, composed of α-D-glucose units with α-1,4 and α-1,6-glycosidic bonds.
Recognize the alternative name for cellulose: The term β-1,4-glucan refers to the specific type of glycosidic linkage (β-1,4) between glucose molecules in cellulose.
Relate the structural features of cellulose to its alternative name: Since cellulose is composed of β-D-glucose units linked by β-1,4-glycosidic bonds, the name β-1,4-glucan accurately describes its structure.
Conclude that β-1,4-glucan is another name for cellulose based on its chemical composition and linkage type.
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