other organism cell membrane

Definition

Target type: cellularcomponent

The cell membrane of a secondary organism with which the first organism is interacting. [GOC:jl]

The cell membrane of other organisms, also known as the plasma membrane, is a complex and dynamic structure that plays a crucial role in maintaining the integrity and function of the cell. It is a selectively permeable barrier that regulates the passage of molecules into and out of the cell, contributing to the establishment and maintenance of a stable internal environment.

The cell membrane is composed of a phospholipid bilayer, with the hydrophilic heads facing the aqueous environment and the hydrophobic tails facing each other in the interior of the membrane. Embedded within this bilayer are various proteins, which serve diverse functions. These proteins include:

1. **Integral membrane proteins:** These proteins are permanently embedded within the lipid bilayer, often spanning the entire membrane. They play a role in transport, signaling, and anchoring the cell to its surroundings.

2. **Peripheral membrane proteins:** These proteins are associated with the membrane surface, either through interactions with integral membrane proteins or with the lipid head groups. They are involved in various cellular processes, including signal transduction, cytoskeletal organization, and enzymatic activity.

3. **Lipid-anchored proteins:** These proteins are covalently linked to lipid molecules, which are embedded in the membrane. They are involved in various cellular processes, including cell signaling, adhesion, and trafficking.

In addition to proteins, the cell membrane also contains various lipids, including phospholipids, cholesterol, and glycolipids. These lipids contribute to the structural integrity and fluidity of the membrane, as well as its ability to regulate permeability and signaling events.

The cell membrane is a dynamic structure, constantly undergoing changes in its composition and organization. These changes are essential for various cellular functions, including cell growth, division, and response to environmental stimuli.

The cellular component of the cell membrane is a crucial aspect of cellular life, playing a vital role in maintaining cellular integrity, regulating transport, and facilitating communication with the external environment. Its complex structure and dynamic nature make it a fascinating subject of study in cell biology.'
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Proteins (1)

Compounds (1)