Overview
The cell membrane is a vital component of all living cells, acting as a barrier that separates the internal environment from the external surroundings. It is primarily composed of a phospholipid bilayer with embedded proteins, which contribute to its fluid and dynamic nature. This structure allows t...
Key Terms
Example: Phospholipids arrange themselves in a bilayer in water.
Example: Channel proteins are integral proteins that help transport substances.
Example: Receptor proteins are often peripheral proteins.
Example: The fluid mosaic model explains how proteins can move within the membrane.
Example: Oxygen can easily pass through the membrane due to selective permeability.
Example: Cells regulate their internal conditions to achieve homeostasis.
Related Topics
Cell Transport Mechanisms
Study how substances move across the cell membrane, including diffusion and active transport.
intermediateCell Signaling
Explore how cells communicate with each other through signaling molecules and receptors.
intermediateMembrane Potential
Learn about the electrical potential difference across the cell membrane and its role in cell function.
advancedKey Concepts
Phospholipid bilayerMembrane proteinsFluiditySelective permeability