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.
Like a city wall, it surrounds the cell and allows the cell to maintain its environment. The membrane is a barrier, but it allows important molecules to pass into and out of the cell, just as travellers can pass into and out of city gates. We can find proteins, lipids, and carbohydrates in the membrane. Carbohydrates help to protect the cell from the outside world.