Lens in eye of cockroach is secreted by

Options

A. Corneagen cells
B. Cone cells
C. Retinular pigment sheath
D. Retinular cells

Answer

To answer the question "Lens in the eye of cockroach is secreted by," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Eye Structure of Cockroaches**:
- Cockroaches have a compound eye structure, which is different from the simple lens structure found in vertebrates. The eye consists of multiple units called ommatidia.

2. **Identifying the Role of Corneagin Cells**:
- Corneagin cells are specialized cells in the cockroach's eye that are responsible for forming the cornea. The cornea is crucial for the lens function in the compound eye.

3. **Function of the Lens**:
- The lens in the cockroach's eye is not a single lens but is made up of the corneal facets of each ommatidium. The corneagin cells contribute to the formation of these facets.

4. **Mosaic Vision**:
- Due to the structure of the compound eye, cockroaches have a mosaic vision, allowing them to see multiple images at once. This is a result of the arrangement of ommatidia and the role of corneagin cells.

5. **Conclusion**:
- Based on the information, the lens in the eye of a cockroach is secreted by corneagin cells.

### Final Answer:
The lens in the eye of the cockroach is secreted by **corneagin cells**.

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