Meristematic activity is seen maximum in the :

Options

A. shoot
B. root hair
C. bud
D. leaf

Explanation

**Step-by-Step Solution:**

1. **Understanding Meristematic Cells**: Meristematic cells are specialized plant cells that have the ability to divide continuously. These cells are crucial for plant growth as they contribute to the formation of new tissues.

2. **Types of Meristematic Tissues**: There are three main types of meristematic tissues based on their location:
- **Apical Meristem**: Located at the tips of roots and shoots, responsible for primary growth (lengthening).
- **Intercalary Meristem**: Found at the nodes and internodes, also contributes to lengthening.
- **Lateral Meristem**: Increases the diameter of the plant, primarily found in dicots.

3. **Location of Maximum Meristematic Activity**: The question asks where meristematic activity is seen maximum.
- The apical meristem is located at the apex of the root and shoot.
- The shoot apex is particularly important as it generally exhibits faster growth compared to the root.

4. **Comparison of Growth**:
- The shoot grows more rapidly than the root due to the activity of apical meristematic cells.
- This rapid growth in shoots is essential for the plant to reach sunlight and expand its leaves for photosynthesis.

5. **Conclusion**: Given that the shoot apex has the highest meristematic activity due to its role in promoting rapid growth, the correct answer to the question is **Option A: Shoot**.

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