Download the presentation here Additional NotesDiffusion: movement of molecules, from a region of high concentration to a region of low concentration.- Oxygen diffuses into cells, and the waste carbon dioxide diffuses out. Osmosis: movement of water molecules, across a partially permeable membrane, from a region of high concentration of water to a low concentration of water molecules. - It allows plants to take in water through their roots. - It is used in kidney dialysis machines to filter the blood. Semi-permeable membrane - Small molecules, such as water can pass through the small holes in the membrane…  QuestionsA and B are salt solutions. A has a concentration of 2 g/cm3 and B has a concentration of 3 g/cm3a) Describe solutions A and B using the terms ‘hypotonic’, ‘hypertonic’ or ‘isotonic’. Solution A is hypotonic relative to B. or solution B is hypertonic relative to A
b) Describe solutions A and B in terms of water potential Solution A has a higher water potential than solution B or Solution B has a lower water potential than solution A
c) Describe solutions A and B in terms of concentration Solution A is less concentrated/more dilute than solution B Solution B is more concentrated/less dilute than solution A |
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