change, alter, vary, modify mean to make or become different. change implies making either an essential difference often amounting to a loss of original identity or a substitution of one thing for another. changed the shirt for a larger size; alter implies a difference in some particular respect without suggesting loss of identity.
hydrophilic - having a strong affinity for water; tending to dissolve in, mix with, or be wetted by water. chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions.
1 The membrane consists of a double-layer (a phospholipid bilayer) of amphipathic lipids. 2  The hydrophobic ends face each other on the inside, and the hydrophilic ends are on the outsides of the membrane. 3  That way, the hydrophobic regions do not interact with water, and the hydrophilic regions do.