Biology
National 4
Mathematics
View topicsEnglish
View topicsBiology
ViewingChemistry
View topicsPhysics
View topicsComputer Science
View topicsNational 4 Biology covers three units (Cell Biology, Multicellular Organisms, and Life on Earth) assessed internally, with an Added Value Unit in which pupils carry out and report on their own investigation.
Content includes cell structure and transport, DNA and inheritance, the systems that keep multicellular organisms alive, photosynthesis, respiration, ecosystems, biodiversity and the human impact on the environment. The emphasis is on understanding and describing rather than calculation.
The Added Value investigation is where most pupils need support: choosing a testable question, controlling variables, and writing up results in a structured report.
Curriculum Breakdown
Important Topics
- Cell BiologyCell structure, transport across membranes, DNA and enzymes.
- Multicellular OrganismsReproduction, body systems, transport of materials and control of conditions.
- Life on EarthEcosystems, biodiversity, energy in ecosystems and sampling techniques.
- Photosynthesis & RespirationHow plants make food and how organisms release energy.
- Human ImpactPollution, food production, conservation and sustainability.
- Added Value InvestigationPlanning, carrying out and reporting an independent practical investigation.
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