Cells

• what are cells

  smallest unit of life
• when bacteria divide they create a whole new organism but when plants and animal cells are made they are just replacing dead cells
• common organelles of plant and animal cells

  cell membrane - controls what goes in and out

  nucleus - contains DNA

  mitochondria - provides energy

  ribosomes - site of protein synthesis

  cytoplasm - chemical reactions takes place
• extra organelles for plant cells

  • cell wall - to provide structure
  • vacuole - contains cell sap
  • chloroplasts - where photosynthesis happens (where plant uses sunlight to make sugars)
• eukaryotic

  a type of cell which contains DNA in a nucleus
• Prokaryotic

  a type of cell which contains strands of DNA floating around
• bacteria cells organelles

  • cell membrane
  • cell wall
  • cytoplasm
  • ribosomes
  • strands of DNA
  • some have extra dna called plasmids
  • some have tails to make them swim fast called flagella