Question

which of the following describes the structure of a disaccharide?
a single sugar molecule
three or more simple sugars bonded together
two monosaccharides bonded together
two simple sugars bonded together

Explanation:

A disaccharide is formed when two monosaccharides (simple sugars) are bonded together through a glycosidic linkage. For example, sucrose (table sugar) is a disaccharide made up of glucose (a monosaccharide) and fructose (another monosaccharide). A single sugar molecule is a monosaccharide. Three or more simple sugars bonded together form oligosaccharides or polysaccharides depending on the number of sugar units.

Answer:

Two simple sugars bonded together.