Biology (Combined Science) · GCSE · AQA · AQA GCSE Combined Science: Trilogy (8464) — Biology — Higher · Specification point · 4.1.1.1 · Cell biology · Cell structure
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4.1.1.1 Eukaryotes and prokaryotes
| Content | Key opportunities for skills development |
|---|---|
Plant and animal cells (eukaryotic cells) have a cell membrane, cytoplasm and genetic material enclosed in a nucleus. | |
Bacterial cells (prokaryotic cells) are much smaller in comparison. They have cytoplasm and a cell membrane surrounded by a cell wall. The genetic material is not enclosed in a nucleus. It is a single DNA loop and there may be one or more small rings of DNA called plasmids. | |
Students should be able to demonstrate an understanding of the scale and size of cells and be able to make order of magnitude calculations, including the use of standard form. | MS 1b, 2a, 2h WS 4.4 Use prefixes centi, milli, micro and nano. |