the number of monosaccharide units in a polysaccharide is

Options

A. 2
B. 9
C. 10
D. more than 10

Answer

To determine the number of monosaccharide units in a polysaccharide, we need to understand the definitions and characteristics of polysaccharides and how they relate to monosaccharides.

### Step-by-Step Solution:

1. **Definition of Polysaccharides**:
- Polysaccharides are large carbohydrate molecules composed of long chains of monosaccharide units. They are formed by the polymerization of monosaccharides through glycosidic linkages.

2. **Understanding Monosaccharides**:
- Monosaccharides are the simplest form of carbohydrates, consisting of single sugar molecules. Examples include glucose, fructose, and galactose.

3. **Characteristics of Polysaccharides**:
- Polysaccharides can contain a varying number of monosaccharide units. They are classified based on the number of monosaccharides they contain:
- Oligosaccharides: 3 to 10 monosaccharide units.
- Polysaccharides: More than 10 monosaccharide units.

4. **Examples of Polysaccharides**:
- Common examples of polysaccharides include starch, cellulose, and glycogen. Each of these is made up of many (more than 10) monosaccharide units linked together.

5. **Conclusion**:
- Given the classification and characteristics of polysaccharides, we can conclude that the number of monosaccharide units in a polysaccharide is more than 10.

### Final Answer:
The number of monosaccharide units in a polysaccharide is **more than 10**.