Lipids are usually made from one molecule of glycerol combined with other molecules. G proteins are important signal transducing molecules in cells. Molecular cloning refers to the process of making multiple molecules. In structures of large molecules and ions, solvent and counterions are often disordered. VWF binds to a number of cells and molecules. Organisms differ according to the number of constructed molecules in their cells. Polymers with charged molecules are called polyelectrolytes. Triglycerides are tri-esters consisting of a glycerol bound to three fatty acid molecules. These rapidly attack nearby molecules, killing cells. The capsid is made of many smaller, identical protein molecules called capsomers. Imidazole is incorporated into many important biological molecules. Interactions with neighboring molecules can cause shifts. It can dissolve hydrocarbons, biological molecules, and even water. Colloids contain larger insoluble molecules, such as gelatin. PFOA can form as a breakdown product from a variety of precursor molecules.