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 Suez Canal is in Egypt and connects the Red and Mediterrean Seas. It is near Israel and has been closed during Middle East Wars. It was built in the 19th century and allowed ships from Asia and Oceania to travel to Europe without circumnavigating Africa.