Which of the following cell in sponges catch food ?

Options

A. Pinacocytes
B. Choanocytes
C. Thesocytes
D. Archaeocytes

Answer

To solve the question "Which of the following cell in sponges catch food?", we will analyze the options provided and identify the correct answer step by step.

### Step 1: Understand the structure of sponges
Sponges are simple aquatic animals that belong to the phylum Porifera. They have a unique cellular organization and are known for their porous bodies. The cells in sponges perform various functions, including feeding, support, and reproduction.

### Step 2: Identify the types of cells in sponges
The main types of cells found in sponges include:
- **Pinacocytes**: These are flat cells that cover the outer surface of the sponge. They help in forming the protective layer but do not catch food.
- **Choanocytes**: Also known as collar cells, these cells have a flagellum surrounded by a collar of microvilli. They are responsible for creating water currents and capturing food particles from the water.
- **Archaeocytes**: These are amoeboid cells that can differentiate into other cell types and are involved in various functions, including digestion and the storage of food.
- **Thesocytes**: These cells are involved in storing food reserves but do not directly catch food.

### Step 3: Analyze the options
1. **Pinacocytes**: Incorrect, as they do not catch food.
2. **Choanocytes**: Correct, as they are the cells that capture food particles.
3. **Thesocytes**: Incorrect, as they are storage cells.
4. **Archaeocytes**: Incorrect, as they are involved in digestion and storage but do not catch food.

### Step 4: Conclusion
The correct answer is **Choanocytes**, as they are the cells in sponges that catch food.

---