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Multiple Choice
One characteristic shared by sucrose, lactose, and maltose is that __________.
A
they are all polysaccharides
B
they are all monosaccharides
C
they all contain fructose
D
they are all indigestible by humans
E
they are all disaccharides
Verified step by step guidance
1
Understand the basic structure of carbohydrates, which are organic compounds made up of carbon, hydrogen, and oxygen. They are classified into monosaccharides, disaccharides, and polysaccharides based on the number of sugar units.
Recognize that monosaccharides are the simplest form of carbohydrates, consisting of a single sugar unit. Examples include glucose, fructose, and galactose.
Identify disaccharides as carbohydrates composed of two monosaccharide units linked together. Common examples include sucrose (glucose + fructose), lactose (glucose + galactose), and maltose (glucose + glucose).
Differentiate disaccharides from polysaccharides, which are complex carbohydrates made up of many monosaccharide units. Examples of polysaccharides include starch, glycogen, and cellulose.
Conclude that sucrose, lactose, and maltose are all disaccharides because they each consist of two monosaccharide units bonded together, distinguishing them from monosaccharides and polysaccharides.