Questions: Identify the prefix used for disaccharides: Each of the reactants in reaction A is a single sugar molecule, also called a monosaccharide. What prefix before saccharide would you use to describe sucrose?

Identify the prefix used for disaccharides

Understanding saccharide classification

Saccharides (sugars) are classified based on the number of sugar units they contain:

• Monosaccharides: single sugar units (e.g., glucose, fructose)
• Disaccharides: two sugar units joined together
• Oligosaccharides: few (typically 3-10) sugar units
• Polysaccharides: many sugar units (e.g., starch, cellulose)

Analyzing sucrose structure

Sucrose is composed of two monosaccharide units:

1. Glucose
2. Fructose

These two monosaccharide units are joined by a glycosidic bond, making sucrose a molecule with exactly two sugar units.

Determining the correct prefix

Since sucrose contains exactly two monosaccharide units (glucose and fructose), the correct prefix to use before "saccharide" would be "di-", making it a disaccharide.

\(\boxed{\text{di-}}\)

\(\boxed{\text{di-}}\)