What will happen if the plasma membrane of a cell breaks down

Explanation :- 

Plasma membrane is present outermost  side of the animal cell.

It maintains the shape of the cell.

It protects the inner cell content from the external environment.

If the plasma membrane of a cell breaks down, then the cell will lose its shape and all the internal content of the cell will get exposed to the external environment.

Final answer :- 

Hence,this is the answer if the plasma membrane of a cell breaks.