WordNet-Online
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Definitions from the WebCell Surface MembraneThe cell surface membrane, also known as the plasma membrane or cell membrane, is a crucial structure that surrounds and encloses all living cells. It acts as a protective barrier, separating the cellular contents from the external environment. Composed of a phospholipid bilayer embedded with various proteins, the cell surface membrane regulates the entry and exit of substances, facilitating communication with neighboring cells and ensuring cell integrity. Sample Sentences: - The cell surface membrane plays a pivotal role in maintaining cellular homeostasis. - Transport proteins embedded in the cell surface membrane facilitate the movement of ions across the cell. - Various receptors present on the cell surface membrane allow cells to respond to external signals. - Cells communicate with each other through specialized junctions in the cell surface membrane. Related Products on Amazon:
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