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Edexcel International A Level · Biology

Cells, Development, Biodiversity and Conservation(Unit 2) revisionBuild it yourself.

Unit 2 covers 2 topics and 20 subtopics. Pick the ones you keep getting wrong and LOCKIN writes you an original exam-style paper, with a full mark scheme.

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What's in Unit 2

Every topic below can be selected on its own, or combined into one paper.

Cell Structure, Reproduction and Development

  • Eukaryotic cell ultrastructure
  • Protein secretion and organelles
  • Prokaryotic cells
  • Microscopy, magnification and resolution
  • Meiosis and genetic variation
  • Gametes and fertilisation
  • Mitosis and the cell cycle
  • Stem cells and differentiation
  • Genotype, phenotype and multiple alleles

Usually 2–10 marks

Plant Structure and Function, Biodiversity

  • Plant cell structure
  • Starch and cellulose
  • Plant fibres and sustainability
  • Water and inorganic ions in plants
  • Antimicrobial properties of plants
  • Drug testing and development
  • Classification and taxonomy
  • Biodiversity and endemism
  • Niche and adaptation
  • Hardy-Weinberg equation
  • Conservation: zoos and seed banks

Usually 2–10 marks

Other Biology units

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