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' .
Primary structure of a biomolecule is the exact specification of its atomic composition and and the chemical bonds connecting the atoms. Secondary structure of the biomolecule is the three-dimensional form of biopolymers, secondary structure is defined by the hydroge n bonds of the biomolecules. Tertiary structure of the biomolecule is the three-dimensional structure,defined by its atomic coordinates, by the formation of h ydrogen, ionic or sulphide bonds.