Using the fluid mosaic model,how is the cell capable of actively protecting itself against injurious agents?
A) By closing down the membrane transport channels to hormones and chemicals.
B) By altering the number and patterns of receptors to bacteria,antibodies,and chemicals.
C) By increasing the number and sensitivity of lysosomes to destroy bacteria.
D) By shifting the bilayer from hydrophobic to hydrophilic in response to antibodies.

Question

Quizplus · Accepted Answer

The fluid mosaic model describes the cell membrane as a fluid structure with various proteins embedded in the phospholipid bilayer. These proteins include receptors that can specifically recognize and bind to harmful agents such as bacteria and antibodies. By altering the number and patterns of these receptors, the cell can actively protect itself by preventing the harmful agents from entering the cell or by initiating an immune response to neutralize them. Therefore, option B is the best choice. Options A, C, and D are incorrect as they do not describe mechanisms of protection that are consistent with the fluid mosaic model.

Using the Fluid Mosaic Model,how Is the Cell Capable of Actively