Main article: Cell membrane. The cell membrane, or plasma membrane, is a biological membrane that surrounds the cytoplasm of a cell. In animals, the plasma membrane is the outer boundary of the cell, while in plants and prokaryotes it is usually covered by a cell wall.
Egypt lies between the Red Sea to the east and the Mediterranean Sea to the north. The Red Sea is a narrow, landlocked sea that separates Africa from the Arabian Peninsula. It links to the Mediterranean through the Gulf of Suez and the Suez Canal.
The most interesting thing about this sea is its map. The map of Black Sea flaunts its 159,600 sq mi sea lying between South East Europe and Asia. This sea is connected with the Mediterranean Sea through Bosporus, the Sea of Marmara and the Dardanelles. It is an amazing feature on the map of Black Sea that it is surrounded by six different countries.