The fluid mosaic model of membrane structure was proposed by:
**Core Concept**
The fluid mosaic model is a fundamental concept in cell biology that describes the structure and dynamics of cell membranes. It was proposed by S.J. Singer and Garth Nicolson in 1972. This model explains the fluid nature of the membrane, composed of a phospholipid bilayer with embedded proteins.
**Why the Correct Answer is Right**
The fluid mosaic model suggests that the cell membrane is a dynamic structure, with phospholipid tails interacting with each other to maintain the bilayer, while the hydrophilic heads face the aqueous environment. Embedded proteins, either integral or peripheral, interact with the phospholipid bilayer and other proteins, influencing membrane fluidity and function. This model accurately describes the membrane's ability to maintain its structure while allowing for the free movement of lipids and proteins.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as there is no notable scientist by this name associated with the development of the fluid mosaic model.
**Option B:** This option is incorrect as the fluid mosaic model was not proposed by a scientist with this name. While there are notable scientists with similar names, none are credited with the development of this model.
**Option C:** This option is incorrect as the fluid mosaic model was not proposed by S.J. Singer and Garth Nicolson.
**Clinical Pearl / High-Yield Fact**
The fluid mosaic model highlights the dynamic nature of cell membranes, which is essential for various cellular processes, including signaling, transport, and cell-cell interactions. Understanding this model is crucial for grasping the complexities of cellular biology.
**Correct Answer: C. S.J. Singer and Garth Nicolson.**