International A Level Biology / Cell structure

Prokaryotic cells

Edexcel International A Level Biology (YBI11), chapter 7: Cell structure, specification point 3.5. Part of the full course.

Read the revision notes · International A Level Biology past papers

Prokaryotic cells, such as bacteria, have a simple structure with no nucleus or membrane-bound organelles. Knowing what each part does helps you label a cell and compare it with eukaryotic cells.

More lessons in Cell structure

• Light and electron microscopes: magnification and resolution
• Magnification calculations and units
• Core practical 5: the graticule and drawing animal cells
• The ultrastructure of an animal cell
• What each organelle does
• Recognising organelles in electron micrographs
• Protein transport: rough ER to Golgi to the outside
• From cells to organ systems