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What is the plasma membrane of the cell? What are its main functions?

Answer Posted / Arjun Chaurasia

The Plasma Membrane, also known as the Cell Membrane, is a phospholipid bilayer that encloses the cell and separates it from its external environment. Its main functions include: maintaining the integrity and shape of the cell; regulating the movement of substances in and out of the cell by acting as a selectively permeable barrier; protecting the cell from harmful substances and microorganisms; and participating in signal transduction, which is the process by which cells respond to external stimuli.

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