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It is made of phospholipids (phosphoglycerides, sphingolipids), cholesterol and it can contain a lot of membrane-associated proteins.
Phospholipides (phosphoglycerides, sphingolipids) form a lipid bi-layer, where non-polar moieties (long hydrophobic "tails") are faced inwards, whereas polar "heads" (mostly phosphates, alcohol derivatives or other polar components) are turned outwards. Main components of cell membrane are Phosphatidylserine PS and Phosphatidylcholine PC. Membranes with lots of PS are generally thicker compared to those of PC. Cholesterol can increase the thickness of membrane too and it also causes it to be less fragile.
Membrane can have membrane proteins on its surface (lipid or GPI anchored) or other proteins going through it (transmembrane). These proteins are unequally distributed on a membrane, thus forming membrane microdomains of variable composition or forming an "polarity" of a membrane - some proteins or lipids are specific to cytoplasmic or extracellular surface of a membrane.
What else can I help you with?
What cell structures are made primarily from phospholipids?
cell membrane
What are cell membrane pores are made of?
Cell membrane pores are made up of protein.
Is protoplasm made of the cell membrane?
The cell membrane is made of carbohydrate, lipid, and protein molecules.
What cell membrane is made of a?
The cell membrane is made up of a bilayer of phospholipids.
Is the cell membrane made out of cells?
The cell membrane is made of the lipid bilayer which contains lipids and proteins.
What Membrane sac formed by pinching off pieces of cell membrane?
The membrane sac formed by pinching off pieces of cell membrane is called a vesicle. Vesicles are used for intracellular transport of proteins and other molecules within the cell.
How is the membrane different from the cell wall?
The cell membrane is made up of phospholipids; hydrophobic and hydrophilic. The cell is only in plant cells and is made of cellulose.
All cell surrounded by a flexible barrier known as the?
Cell Membraneorplasma membrane
Does a cell membrane have proteins in it?
a cell membrane is a lipid bi-layer made of phospholipids and water
Which type of membrane surrounds a cell?
this is the cell membrane made primarily of lipid molecules with proteins incorporated into it that aid in transport of molecules across the membrane
What is the cell made of?
The cell membrane is made of carbohydrate, lipid, and protein molecules.
What does the cell membrace made of?
The cell membrane is made of a double layers of phospholipid.
