Question

If a cell suction pressure value is 30atm, while osmotic pressure 42atm, then calculate the turgidity developed in the form of TP in the cell.
(a) 45atm
(b) 72atm
(c) 12atm
(d) 1.4atm

Answer 1

Hint: Plasmolysis is a mechanism that happens as water flows out of the cell and the cell membrane shrinks. This happens when the cell is put in a hypertonic solution (which has more solutes). Water is lost from the cytoplasm, and then the vacuole..

Complete answer:
Turgid refers to cells or tissues that are bloated from the uptake of water. Turgidity is a state of swelling or turgidity, particularly due to high fluid content. Turgidity is a cell state in which the plant cell, having absorbed water, is in a state of stress. A turgid plant cell is a plant cell that has been filled with water due to osmosis.
Turgor Pressure is the force within the cell that forces the plasma membrane against the cell wall and is also known as hydrostatic pressure.
Turgor Pressure is the force within the cell that forces the plasma membrane against the cell wall. Osmotic Pressure (OP) - Suction Pressure (SP) = Turgor Pressure (TP).
Here, OP=42atm and SP=30atm
Therefore, TP= 42-30= 12atm
-The process of plasmolysis does not occur in dead cells.
-This process helps to prove the semipermeability of membranes.
-It is useful in the measurement of osmotic pressure.

So, the correct answer is, “12atm.”

Note:
-Plasmolysis is the opposite state of turgidity. Turgidity is important to make plant cells stand upright.
When the cell is placed in an isotonic solution, there is no net movement of water and when it is placed in a hypotonic solution, the water flows into the cell and exerts pressure on its walls known as turgor pressure. Plant cells that lose a lot of water have less turgor pressure and appear to become flaccid.