OCR A Level Biology A (H420) Specification - 687834-download-a-level-specification.pdf

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• nucleus, nucleolus, nuclear envelope, rough and smooth endoplasmic reticulum (ER), Golgi apparatus, ribosomes, mitochondria, lysosomes, chloroplasts, plasma membrane, centrioles, cell wall, flagella and cilia

• light microscope, transmission electron microscope and scanning electron microscope.

• (a) the use of microscopy to observe and investigate different types of cell and cell structure in a range of eukaryotic organisms

• c) the use of staining in light microscopy

• (e) the use and manipulation of the magnification formula

• (f) the difference between magnification and resolution

• g) the ultrastructure of eukaryotic cells and the functions of the different cellular components

• (j) the importance of the cytoskeleton

• the process and site of glycolysis

• the link reaction and its site in the cell

• he importance of decarboxylation, dehydrogenation, the reduction of NAD and FAD, and substrate level phosphorylation

• the process and site of the Krebs cycle