Which part of the digestive system secretes peritrophic membrane around the food in cockroach ?

Options

A. Crop
B. Gizzard
C. Hepatic Caecae
D. Mesenteron

Explanation

To answer the question, "Which part of the digestive system secretes peritrophic membrane around the food in cockroach?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Digestive System of Cockroach**:
- The cockroach has a complex digestive system that includes various parts such as the oesophagus, crop, gizzard, mesentron (midgut), ileum, colon, and rectum.

2. **Identify the Function of Each Part**:
- The **crop** is a sac-like structure that stores food.
- The **gizzard** is a muscular structure that grinds food, aided by cuticular plates and bristles.
- The **mesentron (midgut)** is where digestion and absorption primarily occur.

3. **Locate the Secretion of the Peritrophic Membrane**:
- The peritrophic membrane is a protective layer that surrounds the food bolus in the digestive tract. It is secreted by glandular cells.

4. **Identify the Specific Part Responsible for Secretion**:
- The glandular cells that secrete the peritrophic membrane are located in the **mesentron (midgut)**. This membrane protects the midgut from hard food particles.

5. **Conclusion**:
- Based on the information gathered, the part of the digestive system that secretes the peritrophic membrane around the food in cockroach is the **mesentron (midgut)**.

### Final Answer:
The correct answer is **mesentron (midgut)**.

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