Type of stem structure present in Colocasia is

Options

A. Corm
B. Bulb
C. Rhizome
D. Tuber

Answer

To determine the type of stem structure present in Colocasia, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Stem Structures**:
- Stems can be modified to perform various functions, including storage of food and survival during unfavorable conditions.

2. **Identifying Colocasia**:
- Colocasia is a plant known for its edible parts, often referred to as taro. It has a specific type of stem structure.

3. **Types of Stem Structures**:
- The options provided are: corm, bulb, rhizome, and tuber.
- We need to identify which of these structures is present in Colocasia.

4. **Analyzing Each Option**:
- **Corm**: A corm is a swollen underground stem that stores nutrients and helps the plant survive adverse conditions.
- **Bulb**: A bulb is a short stem with fleshy leaves or leaf bases that store food.
- **Rhizome**: A rhizome is a horizontal underground stem that can produce new shoots and roots.
- **Tuber**: A tuber is a swollen part of a stem or root that stores food.

5. **Conclusion**:
- In the case of Colocasia, the stem structure is a corm. Corms are specifically adapted for storage and survival, which aligns with Colocasia's characteristics.

6. **Final Answer**:
- The type of stem structure present in Colocasia is a **corm**.