B1.3

• Eukaryotic cells all have a cell membrane, cytoplasm and genetic material enclosed in a nucleus.
• Animal and plant cells are eukaryotic cells
• Bacteria are unicellular and are examples of prokaryotic cells.
• Prokaryotic cells do not have an enclosed nucleus.
• What sub-cellular structures don't prokaryotic cells have?

  Mitochondria

  Chloroplasts

  Enclosed nucleus
• Define: Sime capsule


  Some prokaryotic cells may have a slime capsule to protect it.
• Define: Nucleotide


  Singular strand of DNA suspended in the cytoplasm that contains vital genes needed for the cell to survive and reproduce.
• Define: Plasmids


  Extra genes that some cells have.

  Eg. antibiotic resistance.
• Define: Flagellum


  Protein strands that act like a tail that aid the cell with movement.