Lenticel opening possess

Options

A. complementary cells
B. accesory cells
C. water storing cells
D. none of the above

Answer

### Step-by-Step Solution:

1. **Understanding Lenticels**: Lenticels are small openings found on the surface of stems and roots of certain plants, particularly during secondary growth. They facilitate gas exchange between the internal tissues of the plant and the external environment.

2. **Formation of Lenticels**: Lenticels are formed as a result of abnormal activity of the cork cambium. During secondary growth, the cork cambium produces cork on the outside and parenchyma cells on the inside. When these parenchyma cells become pressurized, they cause the outer epidermis to burst.

3. **Role of Complementary Cells**: The parenchyma cells that are involved in this process are referred to as complementary cells. These cells help in forming the lenticel openings when the epidermis ruptures.

4. **Function of Lenticels**: The primary function of lenticels is to allow for the exchange of gases such as oxygen (O2) and carbon dioxide (CO2). They also play a role in the loss of water through transpiration.

5. **Identifying the Correct Answer**: The question asks about the openings of lenticels. Since lenticels are formed from complementary cells and are responsible for gas exchange, the correct answer is "complementary cells."

### Final Answer:
The openings of lenticels possess complementary cells.

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