several small rings of DNA called plasmids in the cytoplasm. 4.1.1.5 Microscopy Describe the differences in 1 Use a variety of resources to Use online and Observation magnification and resolution of research the differences printed materials to activity materials: An electron microscope light and electron microscopes. between a light microscope calculate the real microscope has a much higher and an electron microscope. sizes of cells and graticule magnification and Explain how electron microscopy Use online materials to make a structures. prepared resolution than a light has increased understanding of display of cell images from a Limited to the slides microscope, so it can be organelles. light microscope and from an differences in calculator. used to study cells in electron microscope. magnification and much finer detail and Calculate the magnification of a resolution. show organelles. light microscope. Write a newspaper article Carry out calculations using the entitled: Extension work ‘Microscope…..the formula: best invention ever!’ where Use a microscope students explain the with graticule to significance of the microscope measure cells and and discuss what the world calculate their real would be like if microscopes size. Rearrange the equation to were never invented. calculate image size or Calculate the real size of magnification. microscope images, and Convert values for the units: cm, convert units as appropriate. mm, µm and nm. Rearrange the equation to calculate a different unknown. 4.1.1.6 Culturing Know that bacteria multiply by 1 How many bacteria be Preparation of microorganisms simple cell division. made during the lesson if there inoculating plates. was:
several small rings of DNA called plasmids in the cytoplasm. 4.1.1.5 Microscopy An electron microscope has a much higher magnification and resolution than a light microscope, so it can be used to study cells in much finer detail and show organelles. Describe the differences in magnification and resolution of light and electron microscopes. Explain how electron microscopy has increased understanding of organelles. Calculate the magnification of a light microscope. Carry out calculations using the formula: Rearrange the equation to calculate image size or magnification. Convert values for the units: cm, mm, µm and nm. 1 Use a variety of resources to research the differences between a light microscope and an electron microscope. Use online materials to make a display of cell images from a light microscope and from an electron microscope. Write a newspaper article entitled: ‘Microscope…..the best invention ever!’ where students explain the significance of the microscope and discuss what the world would be like if microscopes were never invented. Calculate the real size of microscope images, and convert units as appropriate. Rearrange the equation to calculate a different unknown. Use online and printed materials to calculate the real sizes of cells and structures. Limited to the differences in magnification and resolution. Extension work Use a microscope with graticule to measure cells and calculate their real size. Observation activity materials: microscope graticule prepared slides calculator. 4.1.1.6 Culturing microorganisms Know that bacteria multiply by simple cell division. 1 How many bacteria be made during the lesson if there was: Preparation of inoculating plates.
AQA-8461-SOW-CELLS.DOCX