The plasmolysed cells regain turgidity and assume original volume under influence of hypotonic solution. The prosses is called

Options

A. plasmolysis
B. Deplasmoysis
C. Endosmosis
D. Exosmosis

Answer

To solve the question regarding the process by which plasmolysed cells regain turgidity and assume their original volume under the influence of a hypotonic solution, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Plasmolysis**:
- Plasmolysis occurs when plant cells lose water and shrink due to being placed in a hypertonic solution (a solution with a higher solute concentration than the cell's interior). This causes the protoplasm to pull away from the cell wall.

**Hint**: Remember that plasmolysis is the shrinking of the cell due to water loss.

2. **Identifying the Environment**:
- When a plasmolysed cell is placed in a hypotonic solution (a solution with a lower solute concentration than the cell's interior), the concentration of water outside the cell is higher than inside.

**Hint**: Hypotonic solutions have a lower concentration of solutes compared to the cell's interior.

3. **Water Movement**:
- Due to osmosis, water will move from the hypotonic solution into the cell, as water moves from areas of high concentration to areas of low concentration.

**Hint**: Think about how water moves to balance concentrations on either side of a membrane.

4. **Regaining Turgidity**:
- As water enters the cell, the cell swells and regains its turgidity, which is the state of being firm and swollen due to water pressure against the cell wall.

**Hint**: Turgidity is essential for plant cells to maintain structure and support.

5. **Naming the Process**:
- The process of a plasmolysed cell regaining turgidity after being placed in a hypotonic solution is specifically called "deplasmolysis."

**Hint**: The prefix "de-" indicates a reversal of the plasmolysis process.

### Final Answer:
The process by which plasmolysed cells regain turgidity and assume their original volume under the influence of a hypotonic solution is called **deplasmolysis** (Option B).