Algonquin College Arithmetic Test Preparation AC-HPAT - A+ Rated Study Resource

active transport - answer - movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient. Active transport requires cellular energy to achieve this movement.



passive transport - answer - Requires NO energy, movement of molecules from high to low concentration, moves with the concentration gradient



covalent bond - answ...