Potato tuber is a modified stem as it

Options

A. Bears roots
B. Bears axillary buds
C. Lacks nodes
D. Is non - green

Answer

**Step-by-Step Solution:**

1. **Understanding the Potato Tuber**:
- A potato tuber is an underground storage organ of the potato plant. It is classified as a modified stem because it has specific characteristics that distinguish it from roots.

2. **Identifying Characteristics of Modified Stems**:
- Modified stems can have nodes and internodes. Nodes are points on the stem where leaves or branches arise, while internodes are the segments between the nodes.

3. **Analyzing the Options**:
- **Option A: Bears roots**: This is incorrect because while potato tubers may have roots, it does not define them as modified stems.
- **Option B: Bears axillary buds**: This is correct. Potato tubers have axillary buds (often referred to as "eyes") that can develop into new shoots.
- **Option C: Lack nodes**: This is incorrect because potato tubers do have nodes.
- **Option D: It's non-green**: This is not a defining characteristic of a modified stem, as many stems can be non-green.

4. **Conclusion**:
- The correct answer is **Option B: Bears axillary buds**. This characteristic confirms that the potato tuber is indeed a modified stem.