cork/bottle cork is formed from

Options

A. Xylem
B. Vascular cambium
C. Dermatogen
D. Phellogen

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the origin of cork, specifically bottle cork. We need to identify which tissue is responsible for its formation.

2. **Analyzing the Options**: The options provided are:
- Xylem
- Vascular cambium
- Dermatogen
- Fallogen

3. **Identifying the Correct Answer**:
- **Xylem**: This is primarily involved in water conduction and does not produce cork. Therefore, this option is incorrect.
- **Vascular Cambium**: This tissue is responsible for the formation of secondary xylem and phloem, but it does not directly produce cork. Thus, this option is also incorrect.
- **Dermatogen**: This is the outermost layer of the plant and is involved in the formation of the epidermis, not cork. Hence, this option is incorrect.
- **Fallogen**: Also known as cork cambium, fallogen is a layer of meristematic tissue that produces cork (phelum) towards the outside and secondary cortex (phelloderm) towards the inside. This is the correct answer.

4. **Conclusion**: The correct answer to the question "cork/bottle cork is formed from" is **Fallogen**.

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