Shock movements of leaves of Sensitive Plant, Mimosa pudica, are

Options

A. thermonasty
B. seismonasty
C. hydrotropism
D. chemonasty

Explanation

To determine the type of shock movements of leaves in the Sensitive Plant, Mimosa pudica, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Mimosa pudica**:
- Mimosa pudica, commonly known as the "sensitive plant" or "touch-me-not," exhibits rapid movements in response to touch.

2. **Identifying the Movement Type**:
- The movement of the leaves when touched is a response to an external stimulus. This is a key characteristic of certain types of plant movements.

3. **Classifying the Movement**:
- The movements in Mimosa pudica are classified as **thigmonastic movements**. This type of movement occurs in response to mechanical stimulation (like touch).

4. **Mechanism of Movement**:
- When the leaves are touched, there is a rapid change in turgor pressure within the cells of the leaves. This change in turgor pressure causes the leaves to droop or fold.

5. **Signal Transmission**:
- The shock movement is transmitted through the plant via a cell-to-cell transfer of signals, which is a characteristic of **seismonastic movements**. The term "seismo" relates to shock, indicating that these movements are indeed shock-related.

6. **Conclusion**:
- Therefore, the shock movements of the leaves of Mimosa pudica are classified as **seismonastic movements**.

### Final Answer:
The shock movements of leaves of the Sensitive Plant, Mimosa pudica, are **seismonastic movements**.

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