The lipid bilayer is a thin polar membrane made of two layers of lipid molecules.The compositions of the inner and outer membrane leaflets are different.
The cell membrane's bilayer structure is made up of phospholipids.
the inside of it, the phospholipid's tails
Well i think what you are asking is what forms the thin membrane of a cell. and that is a Phospholipid bilayer where the outside surfaces of the bilayer are hydorphilic (heads) and the inside of the bilayer is hydrophobic (tails).
The inside of a membrane bilayer consists of the hydrophobic tails of the phospholipid molecules, which are oriented towards each other. This hydrophobic region is impermeable to most ions and polar molecules, creating a barrier that helps maintain the structural integrity of the cell membrane. It also provides a stable environment for membrane proteins embedded within the bilayer to carry out their functions.
in a cell what is the function of the cell membrance
Membranes of the organelles and of the cell itself are made mainly out of a lipid bilayer. There may be proteins and cholesterol inside the bilayer but its concentration depends on the organelle. The ribosomes are proteins.
Transport proteins facilitate the movement of molecules across the bilayer. Receptor proteins transmit signals from outside the cell to inside. Enzymes in the bilayer catalyze biochemical reactions. Structural proteins provide support and shape to the cell membrane.
Phospholipids, where one end is hydrophobic and the other is hydrophilic.
hydrophobic
The nucleus is found inside a lipid bilayer membrane that is very similar to the membrane around the entire cell. It is called the nuclear membrane.
Peripheral proteins are under the phospholipid bilayer, while integral proteins are inscribed in the bilayer.Integral proteins pass entirely through the lipid bilayer of the plasma membrane and have domains that go from the outside of the cell to the cytoplasm inside the cell. While peripheral proteins are only on the one side of the lipid bilayer, either the outside of the cell or the cytoplasmic side inside the cell, but not both.
Protein Molecules