Which one of the following cell I totipotent and responsible for regenerative capacity in sponges ?

Options

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

Answer

To solve the question regarding which cell is totipotent and responsible for the regenerative capacity in sponges, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: We need to identify the type of cell in sponges that is totipotent and plays a role in regeneration.

2. **Identify the Options**: The options given are:
- A. Pinocytes
- B. Thesioscytes
- C. Archeocytes
- D. Scleroblast

3. **Analyze Each Option**:
- **Pinocytes**: These are flat cells found on the outer surface of sponges. They are primarily involved in forming the outer layer and do not have regenerative capabilities.
- **Thesioscytes**: These are a type of amoebocyte that primarily serves to store food. They do not have totipotent properties.
- **Archeocytes**: These are amoeboid cells found within sponges. They are known for their totipotent nature, meaning they can differentiate into various cell types and are responsible for the regenerative processes in sponges.
- **Scleroblast**: These cells are involved in forming the sponge's skeleton by secreting spicules. They do not have regenerative capabilities.

4. **Determine the Correct Answer**: Based on the analysis, archeocytes are the cells that are totipotent and responsible for the regenerative capacity in sponges.

5. **Final Answer**: The correct answer is **C. Archeocytes**.