NEET BIOLOGY

Detailed explanation-1: -The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.

Detailed explanation-2: -The outer lining of a eukaryotic cell is called the plasma membrane. This membrane serves to separate and protect a cell from its surrounding environment and is made mostly from a double layer of proteins and lipids, fat-like molecules.

Detailed explanation-3: -A cell membrane or plasma membrane is a thin, delicate membrane surrounding the cytoplasm. The following are the functions of the cell membrane: It separates the cells from one another and also separates the cells from the surrounding medium. It gives a definite shape to the cell.

Detailed explanation-4: -The outer leaflet of the plasma membrane consists mainly of phosphatidylcholine and sphingomyelin, whereas phosphatidylethanolamine and phosphatidylserine are the predominant phospholipids of the inner leaflet. A fifth phospholipid, phosphatidylinositol, is also localized to the inner half of the plasma membrane.

Detailed explanation-5: -The cell membrane is composed of proteins and lipids. The bi-layered phospholipids are the lipids to which a phosphate group is attached and have a hydrophilic head and two hydrophobic tails.