The plasma membrane is considered a fluid mosaic model with some stability provided by which of the following components?Try againCholesterolTry againTry again
Question
The plasma membrane is considered a fluid mosaic model with some stability provided by which of the following components?Try againCholesterolTry againTry again
Solution
The plasma membrane is considered a fluid mosaic model due to its dynamic nature where lipids and proteins move laterally within the layer. The stability of this model is provided by cholesterol. Cholesterol is a type of lipid that is wedged between the fatty acid chains of the phospholipids that make up the bulk of the membrane. This helps to prevent fatty acid chains from coming together and crystalizing, thus maintaining the fluidity of the membrane. Additionally, cholesterol also helps to prevent the membrane from becoming too fluid at higher temperatures. Therefore, cholesterol plays a crucial role in maintaining the stability of the fluid mosaic model of the plasma membrane.
Similar Questions
Fluid mosaic model of the plasma membrane was described byJohannes PurkinjeGeorge Emil PaladeCarl BendaSinger and Nicholson
Which of the following regarding the fluid mosaic model is NOT true:Group of answer choicesdescribes the plasma membrane as a two-dimensional fluiddescribes a membrane made of different components including proteins and lipidsdescribes a membrane that allows lateral movement of components including proteinsdescribes a rigid plasma membrane made of lipid bilayer
Which component of the plasma membrane has an important impact on the fluidity of the membrane?
An improved model of the structure of cell membrane was proposedby Singer and Nicolson (1972) widely accepted as fluid mosaic model(Figure 8.4). According to this, the quasi-fluid nature of lipid enableslateral movement of proteins within the overall bilayer. This ability to movewithin the membrane is measured as its fluidity.
On the outer surface of the plasma membrane, there are marker molecules that identify the cell type. Often these molecules are ______________.CholesterolCarbohydrate chainsIonsAmino Acids
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