Surface Area-to-Volume Ratio: As mentioned before, this ratio becomes important here too as it affects how efficiently cells can exchange materials with their surroundings.
Osmosis:The movement of water across membranes from an area with lower solute concentration (higher water concentration) to an area with higher solute concentration (lower water concentration).
Cell Membrane:The outer boundary of the cell that controls what enters and exits. It plays a role in regulating the size of molecules that can pass through.