All of the following tissues are involved in secondary growth except

Options

A. Vascular cambium
B. Lateral meristem
C. Cork cambium
D. Apical meristem

Answer

To solve the question, "All of the following tissues are involved in secondary growth except," we need to understand the types of growth in plants and the tissues associated with them.

### Step-by-Step Solution:

1. **Understand Growth Types**:
- Plants exhibit two main types of growth: primary growth and secondary growth.
- Primary growth occurs at the tips of roots and stems, leading to an increase in length.
- Secondary growth occurs in the lateral meristems, leading to an increase in thickness.

**Hint**: Remember that primary growth is about length, while secondary growth is about thickness.

2. **Identify the Tissues Involved in Secondary Growth**:
- Secondary growth is primarily associated with two types of lateral meristems:
- **Vascular Cambium**: This tissue contributes to the formation of secondary xylem (wood) and secondary phloem.
- **Cork Cambium**: This tissue produces cork cells, which replace the epidermis in older stems and roots.

**Hint**: Focus on the lateral meristems when considering secondary growth.

3. **Identify the Tissue Not Involved in Secondary Growth**:
- The apical meristem is responsible for primary growth, as it is located at the tips of roots and stems and facilitates elongation.
- Since the question asks for the tissue that is NOT involved in secondary growth, we identify the apical meristem.

**Hint**: Recall that apical meristem is linked to growth at the tips, which is characteristic of primary growth.

4. **Conclusion**:
- The tissue involved in secondary growth except for the others mentioned is the **apical meristem**.

### Final Answer:
The tissue involved in secondary growth except is the **apical meristem**.

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