Read the given paragraph
It is lined by glandular and ciliated cells. It absorbs nitrogenous waste products from haemocoel and covert them into uric acid which is excreted out through the hindout
Which of the following structures of cockroach is referred here ?

Options

A. Trachea
B. Hepatic caecum
C. Tergum
D. Malpighian tubule

Answer

To solve the question regarding which structure of the cockroach is described in the paragraph, we can follow these steps:

### Step-by-Step Solution:

1. **Identify Key Features in the Paragraph**:
- The structure is lined by glandular and ciliated cells.
- It absorbs nitrogenous waste products from the hemocoel.
- It converts these waste products into uric acid.
- The uric acid is excreted through the hindgut.

2. **Analyze the Options Given**:
- **Trachea**: This is involved in respiration, not excretion.
- **Hepatic Cecum**: This is related to digestion and not primarily an excretory organ.
- **Tergum**: This is a part of the exoskeleton and does not have a role in excretion.
- **Malpighian Tubule**: This is known to be the excretory organ in cockroaches.

3. **Match Features to the Correct Structure**:
- The Malpighian tubules are indeed lined with glandular and ciliated cells.
- They absorb nitrogenous wastes from the hemocoel.
- They convert these wastes into uric acid.
- The uric acid is then excreted through the hindgut.

4. **Conclude the Answer**:
- Based on the analysis, the structure referred to in the paragraph is the **Malpighian Tubule**.

### Final Answer:
The structure of the cockroach referred to in the paragraph is the **Malpighian Tubule**.

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