Time Learning activity with opportunity Assessment Learning Outcome Resources Learning objective taken to develop skills opportunities Specimen 0.2 Describe the Learning activities: Principles of cell assessment weeks processes of cell pair, share: what are the fractionation and material: fractionation and difficulties that need to be ultracentrifugation as ultracentrifugation. AS 1 (set 1) Q1 overcome in investigating the – used to separate cell Explain why the function cell components and components. separation of cell organelles? Rich question: components is Past exam paper a simple demonstration can put the cell important in material: be carried out by centrifuging organelles in order studying cells and orange juice with pulp to BIOL1 June 2009 – of sedimentation as their components. produce a pellet and Q1 the speed of the Explain the use of supernatant centrifuge is low temperatures June 2010 Q3 – teacher explanation of cell increased and buffers during fractionation and Jan 2013 Q2 – why are cell fractionation. ultracentrifugation in obtaining fractionated cells Explain the fractions for investigation. Use kept in a solution principles of Exampro animations and videos to that is ice cold, separation by support explanation buffered and the BYB1 June 06 ultracentrifugation. provide students with same water BYB1 June 2005 Q3 – information on organelles and potential? ask them to suggest what order they would sediment at exam questions. Skills developed by learning activities: PS 1.2 apply knowledge of – organelles and their size to
Learning objective Time taken Learning Outcome Learning activity with opportunity to develop skills Assessment opportunities Resources Principles of cell fractionation and ultracentrifugation as used to separate cell components. 0.2 weeks Describe the processes of cell fractionation and ultracentrifugation. Explain why the separation of cell components is important in studying cells and their components. Explain the use of low temperatures and buffers during cell fractionation. Explain the principles of separation by ultracentrifugation. Learning activities: pair, share: what are the difficulties that need to be overcome in investigating the function cell components and organelles? a simple demonstration can be carried out by centrifuging orange juice with pulp to produce a pellet and supernatant teacher explanation of cell fractionation and ultracentrifugation in obtaining fractions for investigation. Use animations and videos to support explanation provide students with information on organelles and ask them to suggest what order they would sediment at exam questions. Skills developed by learning activities: PS 1.2 – apply knowledge of organelles and their size to Specimen assessment material: AS 1 (set 1) – Q1 Past exam paper material: BIOL1 June 2009 – Q1 June 2010 – Q3 Jan 2013 – Q2 Exampro BYB1 June 06 BYB1 – June 2005 Q3 Rich question: put the cell organelles in order of sedimentation as the speed of the centrifuge is increased why are fractionated cells kept in a solution that is ice cold, buffered and the same water potential?
AQA-7401-SOW.DOCX