This is the British English definition of vague. View American English definition of vague. Change your default dictionary to American English. View the pronunciation for vague.
Fluid-mosaic model. 1  Plasma membrane consists of a phospholipid bilayer studded with proteins, polysaccharides, lipids. 2  The lipid bilayer is semipermeable Regulates passage of substances into and out of the cell. H2O and some small, uncharged, molecules (O2, CO2) can pass through.
7. The _____ is the bacterial structure that acts as a selective barrier, allowing nutrients to enter the cell and wastes to leave the cell. (Activity 27A). The structure that regulates the passage of material into and out of this bacterial cell is indicated by the letter _____.