Revise: Cell structureStructure of fungal and bacterial cells
Cells are microscopic building blocks of unicellular and multicellular living organisms. Animal, plant, fungal and bacterial cells are different in terms of structure but also have many similarities.
A yeast is a unicellular fungus. The diagram below shows the ultrastructure of a typical yeast cell:
Bacterial cells
bacterial cell A microscopic individual cell of a bacterium. have a more simple structure compared to animal, plant and fungal cells and are usually much smaller.
They still have a cell membraneA selectively permeable membrane surrounding the cell and controlling the entry and exit of materials. and ribosomeThe site of protein synthesis., but they lack organelles such as the nucleusThe nucleus controls what happens inside the cell. Chromosomes are structures found in the nucleus of most cells. The plural of nucleus is nuclei..
However, bacteria still have DNA, including extra circular pieces of DNA called plasmids.Their cell wallOuter structure which provides supports and prevents the cell from bursting by the uptake of water by osmosis from bursting. is made of a diffferent material and has a different structure to those of plant and fungal cell An individual cell of a fungus, eg yeast. .