Module: Cell

• Prokaryotic cells
  • no true nucleus
  • no membrane bound organelles
  • much smaller
  • contains single loop of DNA and plasmids
• Eukaryotic cells
  • True nucleus
  • contains mitochondria/ ribosome/ nucleus
  • *plant cell also contains chloroplast, cell wall and vacuole
• calculations from mm --> um --> nm ( x 10^3 each)
• The cell cycle
  • Interphase DNA replication; Sub-cellular structure increases in number
  • Mitosis: Chromosome line up at the equator; to be pulled to each end
  • Cytokinesis: Cytoplasm & cell membrane divides