cell By Ivan Suarez Robles 14 Nov, 2010 The smallest structural unit of an organism that is capable of independent functioning, consisting of one or more nuclei, cytoplasm and various organelles, all surrounded by a membrane.Related Articles: Inhibition of mitochondrial protein import by mutant huntingtinGlossary: striatonigral pathwayGlossary: stroke11th Annual Huntington Disease Research SymposiumStories of HOPES: "Bryan's Dad Isn't Who Lila Remembers"