This gives them a rigid structure. Supports and strengthens cell? Cell membrane Selectively permeable double layer of lipid and protein molecules? All cell types ? Fluid enclosed by the cell ...

electrostatically gated permeability. We use crosslinking and covalent grafting of a pH-responsive copolymer to generate an ultrathin elastic membrane that exhibits selective release and uptake of ...

Therefore, it is named as selectively permeable membrane ... The flexibility of the cell membrane enables the cell to engulf the solid particles of food and other materials from its external ...

Transport across membranes All cells are enclosed by a cell membrane, which is selectively permeable. Molecules can move into or out of cells by diffusion and active transport. Cells can gain or ...

Lipid membranes, which form the outer layer of cells, can be engineered to influence cellular functions. For example, ...