Tuber is a modified

Options

A. Root
B. Shoot
C. Bud
D. Stem

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Question**: The question asks what a tuber is modified from among the options: root, shoot, bud, or stem.

2. **Identifying the Type of Structure**: A tuber is a specialized structure that is primarily associated with the plant's stem.

3. **Characteristics of a Tuber**: Tubers are thickened parts of the stem that grow underground. They serve multiple functions, including food storage and vegetative reproduction.

4. **Function of Tubers**: Tubers store large amounts of starch, which provides energy and nutrition. They also have buds that can sprout and produce new plants, facilitating vegetative propagation.

5. **Conclusion**: Based on the characteristics and functions of a tuber, it is classified as a modified stem.

6. **Final Answer**: Therefore, the correct answer is that a tuber is a modified **stem**.

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