Question:
Fluid Mosaic Model of cell membrane was proposed by:
Fluid Mosaic Model of cell membrane was proposed by:
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The Fluid Mosaic Model was proposed in 1972 and remains the most accepted model explaining the structure of biological membranes.
Updated On: Jun 9, 2026
- Schleiden and Schwann
- Singer and Nicolson
- Watson and Crick
- Robert Brown
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The Correct Option is B
Solution and Explanation
Concept:
The cell membrane is a thin, living, selectively permeable boundary that surrounds the cell.
The most widely accepted explanation of membrane structure is the Fluid Mosaic Model proposed by Singer and Nicolson in 1972.
Step 1: Understand the term "Fluid". The phospholipid molecules forming the membrane are not fixed in one position. They can move laterally within the membrane, giving it a fluid nature.
Step 2: Understand the term "Mosaic". Various proteins are embedded within the phospholipid bilayer. These proteins appear scattered like pieces of a mosaic pattern.
Step 3: Features of the model. According to Singer and Nicolson:
• The membrane consists of a phospholipid bilayer.
• Proteins are embedded in the bilayer.
• The membrane remains flexible and dynamic.
• It regulates the movement of substances into and out of the cell.
Therefore, the Fluid Mosaic Model was proposed by Singer and Nicolson.
Step 1: Understand the term "Fluid". The phospholipid molecules forming the membrane are not fixed in one position. They can move laterally within the membrane, giving it a fluid nature.
Step 2: Understand the term "Mosaic". Various proteins are embedded within the phospholipid bilayer. These proteins appear scattered like pieces of a mosaic pattern.
Step 3: Features of the model. According to Singer and Nicolson:
• The membrane consists of a phospholipid bilayer.
• Proteins are embedded in the bilayer.
• The membrane remains flexible and dynamic.
• It regulates the movement of substances into and out of the cell.
Therefore, the Fluid Mosaic Model was proposed by Singer and Nicolson.
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