A: The Allied Powers, or Allies, refers to coalitions of primarily North American nations victorious over rival, central-European forces in World War I and World War II. The four nations that recurred as the main forces of the Allied Powers in both wars were France, Russia/USSR, the United Kingdom and the United States. Continue Reading
The Phospholipid Bilayer. 1  All Biological Membranes are made of the same basic structure. 2  This is composed of molecules called Phospholipids, which form a Phospholipid Bilayer. 3  Phospholipids are fats. 4  They are composed of two Fatty Acid 'tails' and a Phosphate 'head' .
Answers: The cell membrane is composed of a phospholipid bilayer. Facing both the extra and cytoplasmic sides of the cell are the hydrophilic heads. The hydrophobic tails of the phospholipids are clustered inside. Various proteins, sterols (e.g. cholesterol), lipids and carbohydrates are embedded in the plasma membrane.Some are peripheral, and are only one side of the membrane. Others are transmembrane. The cell membrane has various functions: Provides a semipermeable barrier for the cell from the outside world.nswers: The cell membrane is composed of a phospholipid bilayer. Facing both the extra and cytoplasmic sides of the cell are the hydrophilic heads. The hydrophobic tails of the phospholipids are clustered inside. Various proteins, sterols (e.g. cholesterol), lipids and carbohydrates are embedded in the plasma membrane.