Cell structure and transport

• What are the two main types of cells discussed in the video?

  Eukaryotic cells and prokaryotic cells
• What is a key feature of both animal and plant cells?

  They both have a nucleus
• What does the nucleus contain in eukaryotic cells?


  The genetic material, or DNA
• How is the genetic material organized in eukaryotic cells?


  It is enclosed in a nucleus
• What are the two additional features of animal and plant cells mentioned?

  Cell membrane and cytoplasm
• What is the function of the cell membrane?


  It regulates what enters and exits the cell
• What type of cells are bacteria classified as?

  Prokaryotic cells
• What is a key characteristic of prokaryotic cells regarding their genetic material?


  The genetic material is not enclosed in a nucleus
• How do the sizes of prokaryotic cells compare to eukaryotic cells?


  Prokaryotic cells are much smaller than eukaryotic cells
• What is the structure of the genetic material in bacteria?


  It consists of a single loop of DNA
• What are plasmids in prokaryotic cells?


  Small rings of DNA
• What additional structure do prokaryotic cells have besides the cell membrane?


  A cell wall
• What type of cell wall do prokaryotic cells have?


  A bacterial cell wall
• What do prokaryotic cells contain besides the cell membrane and cell wall?


  Cytoplasm
• What are the main differences between eukaryotic and prokaryotic cells?


  • Eukaryotic cells have a nucleus; prokaryotic cells do not.
  • Eukaryotic cells are generally larger than prokaryotic cells.
  • Eukaryotic cells contain multiple linear chromosomes; prokaryotic cells have a single loop of DNA.
  • Prokaryotic cells may contain plasmids.
• What are the similarities between eukaryotic and prokaryotic cells?


  • Both have a cell membrane.
  • Both contain cytoplasm.
  • Both have genetic material (DNA).
• What should you remember about the terminology used for cell structures?

  • Do not confuse the cell membrane with the cell wall.
  • The cell wall in prokaryotes is different from the plant cell wall.