Question

give reason the plasma membrane of a cell breaks down

Answer 1

(a) Plasma membrane is the selectively permeable membrane that surrounds the cell and allows the entry and exit of selected materials into and out of the cell. If it ruptures, the contents of the cell will come in direct contact with the surrounding medium and not only unwanted material will be able to enter freely into the cell,
but useful material will also find its way out of the cell easily. This will seriously disrupt the various metabolic activities of the cell and will result in its eminent death.

(b) If there were no Golgi apparatus, the material synthesized by Endoplasmic reticulum would not be carried to the various parts inside and outside the cell. Also as the Golgi apparatus performs the function of storage
and modification of the material synthesized in the cell, these material could not be stored and modified further.

Moreover, there will be no production of lysosomes which will cause the accumulation of waste material, viz. worn out and dead cell organelles within the cell which will ultimately lead to cell death.

hoping that my answer helps you and I'll get a chance to answer your more questions in future.
adityaprakash0574

Answer 2

the cell membrane (also known as the plasma membrane or cytoplasmic membrane,and historically referred to as the plasmalemmly) is a biological membrane that separates the interior of all cells from the outside environment (extracellular space ).
I hope this is right answer .