Rhizome differs from root in

Options

A. Presence of chlorophyll
B. Undergound position
C. Vertical growth in soil
D. Presence of nodes

Answer

### Step-by-Step Solution:

1. **Understanding Rhizomes**:
- A rhizome is a modified stem that grows horizontally underground. Unlike roots, which are primarily for absorption and support, rhizomes serve as storage organs and can produce new shoots and roots.

2. **Identifying Key Differences**:
- The question asks how rhizomes differ from roots. The main differences include:
- **Presence of Nodes**: Rhizomes have nodes from which new shoots and roots can grow, while roots do not have nodes.
- **Function**: Rhizomes store nutrients and can produce new plants, whereas roots primarily absorb water and minerals.
- **Growth Orientation**: Rhizomes grow horizontally, while roots typically grow downward.

3. **Evaluating the Options**:
- **Presence of Chlorophyll**: Rhizomes can have chlorophyll (as they are stems), but roots do not. However, this is not the most significant difference.
- **Underground Position**: Both rhizomes and roots are found underground, so this does not differentiate them.
- **Vertical Growth in Soil**: Rhizomes grow horizontally, not vertically, making this option incorrect.
- **Presence of Nodes**: This is the correct answer since rhizomes have nodes, while roots do not.

4. **Conclusion**:
- The primary difference between rhizomes and roots is the **presence of nodes** in rhizomes, which allows them to produce new shoots and roots.

### Final Answer:
Rhizome differs from root in the **presence of nodes**.

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