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Plasmolysis and Deplasmolysis MCQ - Practice Questions with Answers

Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET

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  • 7 Questions around this concept.

Solve by difficulty

What is plasmolysis?

Why can gargle with salt water help cure a bacterial infection?

What will happen if a plasmolysed cell is placed in a hypotonic solution?

In a plasmolysed cell

Wall pressure is exerted by ____ on the _____

Which statement is incorrect about Plasmolysis?

 

In the plasmolysed cell, the space between the cell wall and protoplasm is occupied by

 

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Concepts Covered - 0

Plasmolysis and Deplasmolysis
  • The term Plasmolysis is defined as “the contraction of the protoplasm to form an undifferentiated mass within plants due to loss of water through exosmosis.”
  • It occurs when the plant cell is placed in a hypertonic solution.
  • To begin with, the plasma membrane detaches itself from the cell. This stage is called incipient plasmolysis
  • The vacuole decreases in its size and finally becomes indistinguishable. This stage is called evident plasmolysis.
  • If the evident plasmolysis continues, it will cause the death of the plant cell.
  • The space created due to the shrinking of the protoplasm is occupied by the plasmolysis solution, which is a hypertonic solution.
  • Plasmolysis is usually reversible
  • When a plasmolysed cell is kept in a hypotonic solution, it will regain its original shape and this process is called deplasmolysis.
  • Bacteria do not survive in salted pickles and jams due to plasmolysis.
  • Mycoplasma is osmotically resistant.

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