may move across Apply knowledge of osmosis to the capillary tube rises during Investigate the effect attached to cell membranes by unfamiliar situations and make the lesson. of water and capillary tube held Explain the movement of osmosis. predictions. concentrated salt in clamp, beaker of molecules as a special type of solution on onion/ water. diffusion through a partially Osmosis is the beetroot/ rhubarb permeable membrane. movement of water cells. 2) Four beakers Predict and explain what will from a dilute solution (two of water and happen to cellulose tubing to a more osmosis. two of sugar bags filled with water or sugar concentrated solution solution); four solution, placed in beakers of through a partially cellulose sausages water or sugar solution. permeable membrane. (two of water and two of sugar Observe and explain the Required Practical: solution). effects of and Osmosis concentrated salt solution on Investigate the effect cells of onion/ beetroot/ of a range of rhubarb. concentrations of salt Observation Use a model to show osmosis or sugar solutions on activity materials: or get students to make a the mass of plant living plant model. tissue. cells: onion/ beetroot/ Watch a computer simulation rhubarb of osmosis in plant and animal microscopes cells. slides coverslips Watch a video clip of osmosis water in blood cells. concentrated solution pipettes
may move across cell membranes by osmosis. Osmosis is the movement of water from a dilute solution to a more concentrated solution through a partially permeable membrane. Required Practical: Osmosis Investigate the effect of a range of concentrations of salt or sugar solutions on the mass of plant tissue. Apply knowledge of osmosis to unfamiliar situations and make predictions. the capillary tube rises during the lesson. Explain the movement of molecules as a special type of diffusion through a partially permeable membrane. Predict and explain what will happen to cellulose tubing bags filled with water or sugar solution, placed in beakers of water or sugar solution. Observe and explain the effects of and concentrated salt solution on cells of onion/ beetroot/ rhubarb. Use a model to show osmosis or get students to make a model. Watch a computer simulation of osmosis in plant and animal cells. Watch a video clip of osmosis in blood cells. Investigate the effect of water and concentrated salt solution on onion/ beetroot/ rhubarb cells. osmosis. attached to capillary tube held in clamp, beaker of water. 2) Four beakers (two of water and two of sugar solution); four cellulose sausages (two of water and two of sugar solution). Observation activity materials: living plant cells: onion/ beetroot/ rhubarb microscopes slides coverslips water concentrated solution pipettes
AQA-8464-SOW-CELLS.DOCX