Question
Asked Feb 26, 2019

Describe the ways in which the membrane is "fluid"

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Step 1

The plasma membrane is the covering of the cell. It separates the inner and outer environment of the cell. It protects the cell from its surroundings. It is composed of a phospholipid bilayer and proteins and is semi-permeable in nature. It makes blood cells flexible so that they can pass through the narrow capillaries with ease. The cytoskeleton is bind to the plasma membrane to give the cell shape. It is also important for conveying the messages as many receptors are bound to in on the cell surface.

Step 2

The plasma membrane is a kind of protection for the cells. It protects the cell from the surroundings and also separates the inner of the cell from the outer environment. It is semi-permeable in nature, making it selective for various ions and organic molecules. Further, it was said that the plasma membrane has a fluid-like structure. This model was given by S.J.Singer and Garth L.Nicolson in 1972. They named this model a fluid mosaic model. This model describes the plasma membrane as a mosaic of certain components. These components include phospholipids, cholesterol, proteins, and carbohydrates. According to the model, these components give the plasma membrane a fluid like structure. When studied under the microscope, it was seen that these compo...

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