Examples of tissues that are formed by redifferentiation are

Options

A. secondary xylem
B. secondary phloem
C. cork cell
D. all of these

Answer

To answer the question regarding examples of tissues formed by redifferentiation, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Redifferentiation**:
- Redifferentiation is the process where de-differentiated cells regain the ability to differentiate into specialized cells. This occurs after the cells have lost their specific functions and characteristics.

2. **Identify De-differentiated Cells**:
- Initially, parenchymatous cells can undergo de-differentiation. These are typically simple, living plant cells that can revert to a more meristematic state.

3. **Formation of Meristematic Tissue**:
- The de-differentiated parenchymatous cells can then form meristematic tissue, which is capable of further differentiation.

4. **Differentiation into Specific Tissues**:
- The meristematic tissue can differentiate into various specialized tissues based on its location and function. Examples include:
- **Secondary Xylem**: This tissue is involved in water and nutrient transport.
- **Secondary Phloem**: This tissue is responsible for the transport of sugars and other metabolic products.
- **Cork Cells**: These cells form the outer protective layer of the plant.

5. **Conclusion**:
- Therefore, the examples of tissues formed by redifferentiation include secondary xylem, secondary phloem, and cork cells. Hence, the correct answer is "all of these."

### Final Answer:
The examples of tissues that are formed by redifferentiation are secondary xylem, secondary phloem, and cork cells. Therefore, the correct option is "all of these."

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