Edexcel Level 3 BTEC Nationals in Health and Social Care

UNIT 13: PHYSIOLOGY OF FLUID BALANCEGrading gridIn order to pass this unit, the evidence that the learner presents for assessment needs to demonstrate that they can meet all of the learningoutcomes for the unit. The criteria for a pass grade describe the level of achievement required to pass this unit.Grading criteriaTo achieve a pass grade the evidence mustshow that the learner is able to:P1P2P3P4P5P6describe the microstructure of a typicalanimal cell and the functions of the maincell componentsexplain the ways in which materialsmove into and out of cellsdescribe the distribution of water in thebody and the functions of constituents ofbody fluidsdescribe the gross anatomy andphysiology of the renal systemdescribe the role of the kidney tubules inthe homeostatic control of waterbalancedescribe dysfunctions in relation towater balance and their possibletreatments.To achieve a merit grade the evidence mustshow that, in addition to the pass criteria,the learner is able to:M1M2M3M4M5use four examples to explain how thefunctions of the main cell componentsrelate to overall cell functionexplain the factors that influence themovement of materials into and out ofcellsexplain the contributions of water andsolutes to the maintenance of a constantinternal environment for cellsexplain the role of the kidney tubules inthe homeostatic control of waterbalanceexplain dysfunctions in relation to waterbalance and their possible treatments.To achieve a distinction grade the evidencemust show that, in addition to the pass andmerit criteria, the learner is able to:D1D2analyse the role of the phospholipidbilayer in terms of the movement ofmaterials into and out of cellsanalyse the impact on the human body ofdysfunctions in relation to waterbalance.184BN018467 – Specification – Edexcel Level 3 BTEC Nationals in Health and Social Care– Issue 1 – February 2007 © Edexcel Limited 2007