Biology- Topic 1

Bacteria cells have NO Nucleus

• Chromosomal DNA- this controls what the cell does. It floats free in the cytoplasm (not in a nucleus)
• Plasmids- are small loops of extra DNA. They aren't part of the chromosome.
• Flagellum- is a long, hair-like strucure. It rotates to make the bacterium move
• The cell is supported by a cell wall.