amphipathic

Containing both polar and nonpolar domains. The property of surface activity is usually due to the fact that the molecules of the substance are amphipathic or amphiphilic, meaning that each contains both a hydrophilic and a hydrophobic (lipophilic) group. This assumes that one of the two phases is aqueous, and the other non-aqueous.If both are non-aqueous (e.g. oil/air), molecules containing organophilic and organophobic groups may be amphipathi…

List of Biology Words Starting with A

A A (aminoacyl) site A form DNA a(n)- A-DNA A-factor A-protein A23187 Ab initio gene prediction ab- abaxial Abbreviated New Drug Application ABC proteins abdomen abdominal abetalipoproteinemia abiogenesis abiotic abiotic factors abiotic stress ablation abnormal ABO blood group aboral end abortion abortive abortive transduction abscess abscise abscisic acid abscission zone absolute zero absorbance optics absorptio…

micelle

An aggregate of amphipathic molecules in water, with the nonpolar portions in the interior and the polar portions at the exterior surface, exposed to water….