biology

• Cells


  The building blocks of life
• Organisms


  • Can be Prokaryotes or Eukaryotes
• All things are made of cells
• Eukaryotic cells


  More complex, include animal and plant cells
• Prokaryotic cells


  Smaller and simpler, like bacteria
• Eukaryotes are organisms made up of eukaryotic cells
• A prokaryotic cell is a single-celled organism
• Plant and Animal Cells


  • Have Similarities and Differences
• Subcellular structures


  The different parts of a cell
• Subcellular structures common to most cells

  • Nucleus
  • Cytoplasm
  • Cell membrane
  • Mitochondria
  • Ribosomes
• Plant cells


  • Have a rigid cell wall
  • Permanent vacuole
  • Chloroplasts
• Bacterial cells are much smaller
• Bacterial cells


  • Don't have chloroplasts or mitochondria
  • Have a single circular strand of DNA in the cytoplasm
  • May contain plasmids
• You might see the sizes of cells expressed in standard form
• You could be asked to estimate the area of a subcellular structure in an exam
• Treat subcellular structures as regular shapes when estimating area