Multiple choice Osmosis involves diffusion of suspended particles from the region of lower concentration to higher concentration water from the more concentrated solution to the less concentrated solution molecules or ions from the less concentrated solution to the more concentrated solution suspended particles from the region of higher concentration to lower concentration molecules or ions from the more concentrated solution to the less concentrated solution Reveal answer Fill a bubble to check yourself E Correct answer Explanation Osmosis involves diffusion of molecules or ions from the more concentrated solution to the less concentrated solution.