For bottle cork, the latter is cut in such a way that lenticels appear
(a) vertically
(b) obliquely
(c) transversely
(d) blocked

Options

A. vertically
B. obliquely
C. transversely
D. blocked

Answer

To solve the question regarding the orientation of lenticels in bottle cork, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of Cork**:
- The cork is formed from the periderm, which is a multilayered structure that replaces the cortex in dicot stems during secondary growth.

2. **Identify the Role of Cambium**:
- The cambium, also known as cork cambium or phellogen, is a meristematic tissue that undergoes periclinal divisions. This means it divides to produce new cells both inward and outward.

3. **Formation of Cork and Secondary Cortex**:
- The cells produced towards the outer side differentiate into cork (phelum), while those produced inward form the secondary cortex (phelloderm).

4. **Lenticels Formation**:
- Lenticels are small openings that facilitate gas exchange and are formed on the surface of the cork. Their orientation depends on how the cork is cut.

5. **Determine the Correct Cutting Orientation**:
- The question asks how the cork is cut to produce lenticels. Based on the understanding of cork structure and formation, lenticels appear when the cork is cut vertically.

6. **Conclusion**:
- Therefore, the correct answer to the question is (a) vertically.

### Final Answer:
The correct option is (a) vertically.

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