Question

What will happen if:- 1)the plasma membrane ruptures or breaks down? 2)a red blood cell is kept in concentrated saline solution?

Answer 1

Plasma membrane acts as a selectively permeable barrier between cell components and external environment. If plasma membrane breaks down, it would result in the release of cellular components including cell organelles and cytoplasm in the external environment ultimately leading to the cell death The cell will seek homeostasis and attempt to balance itself with its environment. Since the external environment is more saline than the interior of the cell (hypertonic), the cell will lose water in an attempt to decrease the exterior salinity

Answer 2

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If the plasma membrane ruptures or breakdown then the cell will not be able to exchange material from its surrounding by diffusion or osmosis. Thereafter the protoplasmic material will be disappeared and the cell will die.

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