Question

In a plasmolysed cell, the space between cell membrane and plasma membrane is occupied by:

• A. Hypotonic solution.
• B. Hypertonic solution.
• C. Isotonic solution.
• D. Air.

Answer 1

Answer: (B)

Hypertonic solution.

• Shrinkage of the protoplast of a cell from its cell that occurs under the influence of a hypertonic solution is called plasmolysis.
• Due to plasmolysis the protoplast separates from the cell wall structure since the protoplast shrinks in size, but cell wall is rigid.
  
• The space between the nucleus and plasma membrane is occupied by a hypotonic solution, i.e., like the nature of cell protoplasm as compared to the external solution.
• The hypertonic solution will be present in the space between the plasma membrane and the cell membrane.
  

Thus, the correct answer is option D.