Though many parts of the cell comprise two sub layers, the one that also serves as the structural support for the cell is the plasmatic membrane.
The plasmatic membrane has many functions, some of which include:
- Filters the flow of substances to and from the cell
- Provides structural support
- Aid in chemical signaling
The plasmatic membrane is made up of a bilipid layer. What this means is that the membrane has two sub parts , an internal layer and an external layer. The external in contact with the extracellular space, while the internal layer contacts directly with the cytosol. This double layer and it's function in providing the structural support for a cell makes it the correct answer.
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