Glossary

active transport

active transport the method of transporting material

that requires energy

concentration gradient

an area of high concentration across from an area of low concentration

diffusion

diffusion a passive process of transport of lowmolecular

weight material down its concentration

gradient

osmolarity

osmolarity the total amount of substances dissolved

in a specific amount of solution

passive transport

passive transport a method of transporting material

that does not require energy