biology revision 2.0 / 5 based on 1 rating ? ScienceBiologyGCSEAQA Created by: Muhammad sumeerCreated on: 11-05-13 15:45 what is osmosis osmosis is the movement of water particles from a high concentration to a low concentration 1 of 5 what is active transport? active transport is the movement of particles against the concentration gradient (from a low concentration to a high concentration) 2 of 5 what does haemoglobin absorb? oxygen 3 of 5 name 1 greenhouse gas? carbon dioxide or methane 4 of 5 do humans have a double circulation system in them? yes 5 of 5
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