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.
Mediterranean Sea. The Mediterranean Sea is a part of Atlantic sea that is bounded by the Mediterranean region and is connected to the Atlantic Ocean. Occasionally it is called as the Eurafrican Mediterranean Sea or the European Mediterranean Sea. The sea is almost wholly enclosed by land on the north by Anatolia and Europe, on the south by Africa, and on the east by the Levant.