A-level Biology
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3.2 Cells
Paper 1 and Paper 3.
10 Lessons
Level 1
Eukaryotic cell structure
Organelles and the jobs cells do
Core
Level 2
Prokaryotic cells and viruses
Bacteria and viruses compared
Core
Level 3
Microscopes, magnification and cell fractionation
Magnification, resolution and fractionation
Core
Level 4
The cell cycle, mitosis and binary fission
Mitosis, the cell cycle and the mitotic index
Core
Required practical 2: a root-tip squash and the mitotic index
Core
Level 5
Membranes and transport across them
Water potential and transport across membranes
Core
Required practical 3: the water potential of plant tissue
Core
Required practical 4: temperature and membrane permeability
Core
Level 6
Antigens, phagocytes and lymphocytes
Phagocytes, T cells and B cells
Core
Level 7
Antibodies, vaccines, HIV and ELISA
Antibodies, vaccines, HIV and ELISA
Core