Why is the cell membrane known as a fluid mosaic?
Understand the Problem
The question is asking for the reasoning behind the characterization of the cell membrane as a 'fluid mosaic'. This involves explaining both the fluid nature of the membrane and the mosaic arrangement of its components, including lipids and proteins.
Answer
It represents a mix of components like a mosaic and allows movement, making it 'fluid'.
The cell membrane is known as a fluid mosaic because it is composed of various molecules like phospholipids, cholesterol, proteins, and carbohydrates, resembling a mosaic, and these components can move fluidly within the membrane, providing flexibility.
Answer for screen readers
The cell membrane is known as a fluid mosaic because it is composed of various molecules like phospholipids, cholesterol, proteins, and carbohydrates, resembling a mosaic, and these components can move fluidly within the membrane, providing flexibility.
More Information
The 'fluid' aspect indicates the flexibility and dynamic nature of the lipid bilayer, while the 'mosaic' aspect refers to the diverse array of proteins and other molecules that are embedded within it.
Tips
A common mistake is to think that the membrane is structurally fixed, but it's important to remember its dynamic nature.
Sources
- Fluid mosaic model: cell membranes article - Khan Academy - khanacademy.org
- 5.2: Components and Structure - Fluid Mosaic Model - bio.libretexts.org
- Fluid Mosaic Model of Cell Membrane - JoVE - jove.com
