CB1d-Inside bacteria

• Are bacteria prokaryotic or eukaryotic?

  Prokaryotic, due to them having no nucleus
• Name the organelles bacteria have

  Cell wall, ribosomes, Plasmid DNA, A single loop of of chromosomal DNA, cell membrane, flagellum
• What is plasmid DNA?

  Contains additional genes that are not found in the chromosomes (eg, antibiotic resistance)
• What is the single loop of DNA?

  It is a single loop of chromosomal DNA that lies free in the cytoplasm, and contains most of the bacteria's genes.
• Why does the bacteria have a cell membrane for?

  For protection, and it is not made out of cellulose
• What is a flagellum?

  A tail to help the bacteria move
• Compare eukaryotic and prokaryotic cells

  Eukaryotic:

  -Contain a nucleus and organelles bound by plasma membranes

  -Nucleus present

  -Multicellular

  
  

  Prokaryotic:

  -Do not have a membrane bound nucleus or organelles

  -No nucleus

  -Unicellular
• What organelles do bacteria NOT possess that animal and plant cells do?

  -No mitochondria

  -No chloroplasts

  -No nucleus