Write two main functions of carbohydrates in plants.

Explanation

### Step-by-Step Solution:

1. **Identify the Functions of Carbohydrates in Plants**:
- Carbohydrates play a vital role in the life of plants, serving multiple functions. We need to focus on two main functions.

2. **First Function: Structural Material**:
- The first main function of carbohydrates in plants is that they serve as structural materials for the plant cell wall. This is crucial for maintaining the rigidity and solidity of the plant structure.
- The specific carbohydrate that fulfills this function is **cellulose**, which is a polysaccharide. Cellulose forms the primary component of the cell wall, providing strength and support to the plant.
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