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 Mediterranean Sea /ËmÉdÉªtÉËreÉªniÉn ËsiË/ is a sea connected to the Atlantic Ocean surrounded by the Mediterranean region and almost completely enclosed by land: on the north by Southern Europe and Anatolia, on the south by North Africa, and on the east by the Levant.he Mediterranean Sea has an average depth of 1,500 m (4,900 ft) and the deepest recorded point is 5,267 m (17,280 ft) in the Calypso Deep in the Ionian Sea. It was an important route for merchants and travellers of ancient times that allowed for trade and cultural exchange between emergent peoples of the region.