Diana Frances Spencer was born in Norfolk, England on July 1, 1961. She was born into a high ranking and important British family. Her father, John Spencer, was a Viscount when she was born and would later inherit the title of Earl.
Cell Membrane. The cell membrane surrounds the cell. This membrane acts like a barrier for the cell, meaning that it allows only certain things to pass in or out of the cell but not everything. Each organelle inside a Eukaryotic cell is also surrounded by a membrane.These membranes serve as a selective barrier for the organelles.ell Membrane. The cell membrane surrounds the cell. This membrane acts like a barrier for the cell, meaning that it allows only certain things to pass in or out of the cell but not everything. Each organelle inside a Eukaryotic cell is also surrounded by a membrane.
The cell membrane (also known as the plasma membrane or cytoplasmic membrane) is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells.The basic function of the cell membrane is to protect the cell from its surroundings. It consists of the phospholipid bilayer with embedded proteins.n animal cells cholesterol is normally found dispersed in varying degrees throughout cell membranes, in the irregular spaces between the hydrophobic tails of the membrane lipids, where it confers a stiffening and strengthening effect on the membrane.