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Multiple Choice
Which monosaccharide is a component of the carbohydrate that makes up the cell walls of fungi and the exoskeletons of arthropods?
A
Fructose
B
N-acetylglucosamine
C
Galactose
D
Glucose
Verified step by step guidance
1
Understand the context: The problem is asking about a specific monosaccharide that is a component of a carbohydrate found in the cell walls of fungi and the exoskeletons of arthropods.
Identify the carbohydrate: The carbohydrate in question is chitin, which is a structural polysaccharide.
Recall the structure of chitin: Chitin is composed of repeating units of a specific monosaccharide derivative.
Determine the monosaccharide: The repeating unit in chitin is N-acetylglucosamine, which is a derivative of glucose where an acetyl group is attached to the nitrogen atom of the glucosamine.
Conclude the answer: Based on the structure of chitin, the monosaccharide component is N-acetylglucosamine, not fructose, galactose, or glucose.