Turgor pressure is absent/not detected during

Options

A. Thistle funnel
B. Animal cell
C. Flaccid plant cell
D. All the above

Answer

**Step-by-Step Solution:**

1. **Understanding Turgor Pressure**: Turgor pressure is the pressure exerted by the fluid (usually water) inside the central vacuole of a plant cell against the cell wall. It is crucial for maintaining the structure and rigidity of plant cells.

2. **Conditions for Turgor Pressure**: Turgor pressure is developed when water enters the cell through osmosis, causing the cell to swell. This pressure is positive and is essential for the plant's overall health.

3. **Identifying the Options**:
- **Option 1: Tishtel funnel**: This is an experimental setup used to measure osmotic pressure, but it does not directly relate to the absence of turgor pressure in cells.
- **Option 2: Animal cell**: Animal cells do not have a rigid cell wall, and while they can experience osmotic pressure, they do not develop turgor pressure like plant cells do.
- **Option 3: Flaccid plant cell**: A flaccid plant cell is one that has lost water and has no turgor pressure. In this state, the water potential and solute potential are equal, leading to a pressure potential of zero.
- **Option 4: All of the above**: This option suggests that turgor pressure is absent in all the previous conditions.

4. **Conclusion**: The correct answer to the question "Turgor pressure is absent/not detected during" is **Option 3: Flaccid plant cell**. In flaccid cells, the lack of water leads to the absence of turgor pressure.