The plasma membrane, also known as the cell membrane, is a selectively permeable barrier that surrounds the cytoplasm of the cell. It functions to protect and provide structural support to the cell, regulate the movement of substances in and out of the cell, and facilitate communication with the external environment.
The plasma membrane is found in almost all types of cells, including prokaryotic cells (bacteria and archaea) and eukaryotic cells (animal cells, plant cells, fungal cells, etc.).
What is the function of the plasma membrane? What cells is it found in?
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