such as phospholipid cell membranes. Whereas movement through aqueous media is accomplished by diffusion or convection and is not associated with an energetic cost, owing to the highly hydrophilic ...

Their analysis of phosphorus seen along the contours of microfossils revealed that these ancient microorganisms already had phospholipid cell membranes similar to those found in modern organisms.

Ever since George Palade's pioneering studies of zymogen secretion from pancreatic acinar cells, the underlying ... insights about the functions of this phospholipid class in intracellular protein ...