NCERT Question 3 - Chapter 5 Class 9 - The Fundamental Unit of Life

What would happen if the plasma membrane ruptures or breaks down?

Answer:

•  The plasma membrane is found in all cells and separates the inside of the cell from the external environment . 
• This membrane is also responsible for passage of materials in and out of the cell .

• Should a plasma membrane rupture , all the contents of the cell will leak out and at the same time get exposed to external environments that it may not be able to endure.
• Harmful foreign bodies may also attack the cell. 
• In any of the cases, the cell will die if its plasma membrane ruptures or breaks down.