cell membrane
The cell membrane is a protective barrier that surrounds each cell, acting like a gatekeeper. It is made up of a double layer of molecules called lipids, along with proteins that help move substances in and out of the cell. This membrane controls what enters or leaves, allowing nutrients in while keeping harmful substances out. It also plays a role in communication between cells. Essentially, the cell membrane is crucial for maintaining the cell's environment and supporting its functions, ensuring the cell stays healthy and responsive to its surroundings.
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The cell membrane is a protective barrier surrounding each cell, acting like a gatekeeper. It is made up of a double layer of fats with proteins embedded within it. This structure allows the cell to maintain its internal environment by controlling what enters and leaves, such as nutrients and waste. The membrane also contains proteins that help communicate with other cells and respond to external signals. Overall, the cell membrane is essential for the cell's survival and function, playing a crucial role in maintaining the health of the organism.