Cell membrane | Definition, Function, & Structure | Britannica
Nov 27, 2025 · A cell membrane is a thin covering that surrounds every living cell. It functions as a barrier, keeping cell constituents in and unwanted substances out, and as a gate, allowing …
Cell membrane - Wikipedia
Glycolipids embedded in the outer lipid layer serve a similar purpose. The cell membrane controls the movement of substances in and out of a cell, being selectively permeable to ions and …
What Is the Structure and Function of the Cell Membrane?
Nov 25, 2025 · Learn how the cell membrane’s dynamic structure defines cellular identity and actively governs all exchange and signaling required for life.
Cell Membrane (Plasma Membrane) – Diagram, Structure, Function
Sep 9, 2025 · The cell membrane (or plasma membrane) is a selectively permeable barrier that encloses the cell. It consists mainly of a phospholipid bilayer with embedded proteins, …
Cell Membrane: Structure, Function, and Importance
Aug 3, 2025 · What makes the cell membrane so remarkable is not just its structure or complexity, but the fact that it is a living, dynamic, thinking barrier. It is not a static wall, but a responsive …
Cell Membrane (Plasma Membrane) - National Human Genome ...
4 days ago · The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of …
3.1 The Cell Membrane – Anatomy & Physiology 2e
Just as the outer layer of your skin separates your body from its environment, the cell membrane (also known as the plasma membrane) separates the inner contents of a cell from its exterior …