The spongocoel of Leucosolenia is lined with

Options

A. Porocytes
B. choanoctyes
C. amoebocytes
D. spicules

Answer

To solve the question "The spongocoel of Leucosolenia is lined with," we will analyze the options provided and determine which type of cell lines the spongocoel.

### Step-by-Step Solution:

1. **Understanding Spongocoel**:
- The spongocoel is the central cavity of a sponge where water flows through. It is important to identify what type of cells line this cavity.

2. **Evaluating the Options**:
- **Option 1: Porocytes**:
- Porocytes are specialized cells that form the pores (ostia) of the sponge and regulate water flow. They do not line the spongocoel itself.
- **Conclusion**: This option is incorrect.

- **Option 2: Choanocytes**:
- Choanocytes, also known as collar cells, are flagellated cells that line the spongocoel. They help in creating water currents and trapping food particles.
- **Conclusion**: This option is correct.

- **Option 3: Amoebocytes**:
- Amoebocytes are mobile cells that distribute nutrients and can differentiate into other cell types. They do not line the spongocoel.
- **Conclusion**: This option is incorrect.

- **Option 4: Spicules**:
- Spicules are structural elements that provide support to the sponge. They are not cells and do not line the spongocoel.
- **Conclusion**: This option is incorrect.

3. **Final Answer**:
- The spongocoel of Leucosolenia is lined with **Choanocytes**.