Revision Notes

Every topic in the 4BI1 specification.

• 1The nature and variety of living organisms

  • 1aCharacteristics of living organisms
  • 1bVariety of living organisms

• 2Structure and functions in living organisms

  • 2aLevel of organisation
  • 2bCell structure
  • 2cBiological molecules
  • 2dMovement of substances into and out of cells
  • 2eNutrition
  • 2fRespiration
  • 2gGas exchange
  • 2hTransport
  • 2iExcretion
  • 2jCo-ordination and response

• 3Reproduction and inheritance

  • 3aReproduction
  • 3bInheritance

• 4Ecology and the environment

  • 4aThe organism in the environment
  • 4bFeeding relationships
  • 4cCycles within ecosystems
  • 4dHuman influences on the environment

• 5Use of biological resources

  • 5aFood production
  • 5bSelective breeding
  • 5cGenetic modification (genetic engineering)
  • 5dCloning