Cambridge IGCSE·Co-ordinated Sciences 0654·Biology
Cells Organisation
Key knowledge — Cells Organisation
Formulas & equations
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Key facts & rules
- Animal cell components: cell membrane, nucleus, cytoplasm, mitochondria, ribosomes.
- Plant cell extra components: cell wall (cellulose), chloroplasts, large permanent vacuole.
- Prokaryotic cells (bacteria): no nucleus, no membrane-bound organelles, smaller, circular DNA.
- Eukaryotic cells: have a membrane-bound nucleus (animals, plants, fungi).
- Mitochondria: site of aerobic respiration (ATP production).
- Ribosomes: site of protein synthesis.
- Chloroplasts: contain chlorophyll, site of photosynthesis.
- Mitosis produces 2 genetically identical diploid daughter cells (growth, repair, asexual reproduction).
- Cell → Tissue → Organ → Organ system → Organism.
IGCSE Biology — Cells & organisation
1052 Cambridge IGCSE 0654 biology past paper questions on cells & organisation, organised by subtopic. Pick a subtopic to start practising.
About cells & organisation on IGCSE 0654
Animal and plant cell structure, specialised cells, and the levels of organisation from cells to tissues, organs and systems. Expect to label diagrams and link structure to function.