If a cell is surrounded by hypertonic solution, then water will move OUT of the cell by osmosis because there is a higher concentration of water inside the cell compared to outside (where there is lots of dissolved salt, etc.) A cell in hypertonic solution will shrink.
Definition of simper for English Language Learners. : 1  to smile in a way that is not sincere or natural. : 2  to say (something) in a way that is not sincere or natural.
Definition of Pervade. 1  transitive verb To pass or flow through, as an aperture, pore, or interstice; to permeate. 2  transitive verb To pass or spread through the whole extent of; to be diffused throughout.