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Multiple Choice
Disaccharides are composed of how many covalently-bonded simple sugars?
A
Four
B
Two
C
One
D
Three
Verified step by step guidance
1
Understand the definition of a disaccharide: A disaccharide is a type of carbohydrate composed of two monosaccharide molecules covalently bonded together.
Recall that monosaccharides are the simplest form of carbohydrates, often referred to as simple sugars.
Identify the bond type: In disaccharides, the two monosaccharides are linked by a glycosidic bond, which is a type of covalent bond.
Consider examples of disaccharides: Common disaccharides include sucrose (glucose + fructose), lactose (glucose + galactose), and maltose (glucose + glucose).
Conclude that disaccharides are composed of two covalently-bonded simple sugars, as indicated by the prefix 'di-' meaning two.