Inside Bacteria

Electron microscope
1. Uses a beam of electrons to magnify specimens x 2,000,000
2. Produces very clear images
3. Helps us discover the detailed structure of cells
  1. Bacteria doesn't have nuclei
Bacterial cells
1. Contain two types of DNA; Plasmid DNA & Chromosomal DNA
  1. Plasmid DNA comes in small loops and carries extra information
    1. Chromosomal DNA is a giant loop of DNA containing most genetic material
2. Has a cell wall but is different to plants
  1. More flexible and is not made of cellulose
3. Contains flagella on outside of cell
  1. Whip-like structure that bacteria use to carry themselves along
    1. Not all bacteria contain flagella

Zusammenfassung der Ressource

	Erstellt von shana jethwa vor fast 9 Jahre