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Multiple Choice
Which of the following is not a type of monosaccharide?
A
Galactose
B
Fructose
C
Sucrose
D
Glucose
Verified step by step guidance
1
Understand the definition of a monosaccharide: Monosaccharides are the simplest form of carbohydrates and are single sugar molecules. They cannot be hydrolyzed into simpler sugars.
Identify the common monosaccharides: Some well-known monosaccharides include glucose, fructose, and galactose. These are all simple sugars with the general formula \( C_6H_{12}O_6 \).
Recognize the structure of sucrose: Sucrose is a disaccharide, which means it is composed of two monosaccharide units. Specifically, it is made up of one glucose molecule and one fructose molecule.
Differentiate between monosaccharides and disaccharides: Monosaccharides are single sugar units, while disaccharides consist of two monosaccharide units linked together. Sucrose, being a disaccharide, does not fit the definition of a monosaccharide.
Conclude that sucrose is not a monosaccharide: Based on the definitions and examples, sucrose is a disaccharide and therefore not a type of monosaccharide, unlike glucose, fructose, and galactose.