The carbohydrate molecule cellulose is a ................

Explanation

**Step-by-Step Solution:**

1. **Identify the Type of Molecule**: The question asks about cellulose, which is a carbohydrate molecule.

2. **Classify Cellulose**: Cellulose is classified as a polysaccharide. Polysaccharides are large molecules made up of long chains of monosaccharides (simple sugars).

3. **Understand Polysaccharides**: Polysaccharides can be further categorized into two types:
- **Homopolysaccharides**: These are made up of one type of monosaccharide.
...