Cells
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AQA Trilogy Science: Cells
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Topic Student Checklist
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4.1.1 Cell structure Use the terms 'eukaryotic' and 'prokaryotic' to describe types of cells
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Describe the features of bacterial (prokaryotic) cells
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Demonstrate an understanding of the scale and size of cells and be able to make order of magnitude calculations, inc standard form
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Recall the structures found in animal and plant (eukaryotic) cells inc algal cells
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Use estimations and explain when they should be used to judge the relative size or area of sub-cellular structures
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Required practical 1: use a light microscope to observe, draw and label a selection of plant and animal cells
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Describe the functions of the structures in animal and plant (eukaryotic) cells
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Describe what a specialised cell is, including examples for plants and animals
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Describe what differentiation is, including differences between animals and plants
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Define the terms magnification and resolution
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Compare electron and light microscopes in terms of their magnification and resolution
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Carry out calculations involving magnification using the formula: magnification = size of image/ size of real object -inc standard form
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4.1.2 Cell divisionDescribe how genetic information is stored in the nucleus of a cell (inc genes & chromosomes)
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Describe the processes that happen during the cell cycle, including mitosis (inc regcognise and describe where mitosis occurs)
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Describe stem cells, including sources of stem cells in plants and animals and their roles
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Describe the use of stem cells in the production of plant clones and therapeutic cloning
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Discuss the potential risks, benefits and issues with using stem cells in medical research/treatments (inc diabetes and paralysis)
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4.1.3 Transport in cellsDescribe the process of diffusion, including examples
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Explain how diffusion is affected by different factors
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Define and explain "surface area to volume ratio", and how this relates to single-celled and multicellular organisms (inc calculations)
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Explain how the effectiveness of an exchange surface can be increased, inc examples of adaptations for small intestines, lungs, gills roots & leaves
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Describe the process of osmosis (inc calculation of water uptake & percentage gain and loss of mass of plant tissue)
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Required practical 3: investigate the effect of a range of concentrations of salt or sugar solutions on the mass of plant tissue
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Describe the process of active transport, including examples - gut and roots
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Explain the differences between diffusion, osmosis and active transport
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