Biology paper

• What is a key characteristic of prokaryotic cells?

  They lack membrane-bound organelles.
• Where is the genetic material located in prokaryotic cells?

  It floats freely in the cytoplasm.
• What type of organisms are prokaryotic cells?

  They are unicellular organisms.
• Can you name examples of prokaryotic cells?

  Bacteria and archaea.
• How do prokaryotic cells typically compare in size to eukaryotic cells?

  They are typically smaller.
• What is a key characteristic of eukaryotic cells?

  They have a membrane-bound nucleus.
• Where is the genetic material located in eukaryotic cells?

  It is contained within the nucleus.
• What type of organisms are eukaryotic cells?

  They can be multicellular organisms.
• What are the main differences between prokaryotic and eukaryotic cells?

  • Prokaryotic cells:
  • Lack membrane-bound organelles
  • Genetic material free in cytoplasm
  • Unicellular
  • Examples: Bacteria, archaea
  • Typically smaller
  • Eukaryotic cells:
  • Have a membrane-bound nucleus
  • Genetic material contained in nucleus
  • Can be multicellular
• Prokaryotes are single-celled organisms without a nucleus or other membrane-bound organelles.
• The cell wall provides structural support and protection against osmotic pressure.
• Both bacteria and archaea are classified as prokaryotes.
• How do you convert micrometres to millimetres?


  Divide by 1000
• what is the triangle of equation?

  Image size at the top and magnification and real size at the bottom
• Bacteria have flagella that allow them to move through their environment by rotating or whipping back and forth.
• What are the adaptations+functions of a sperm cell?

  Function:To swim to the egg

  Adaptation:

  .Acrosome contains enzymes which allow the sperm to penetrate the outer layer of the egg

  .Middle part is full of mitochondria which provides energy for their journey to the egg.
• Xylem cell?

  Function:Transports water and dissolved minerals from the roots to the rest of the plant.

  Adaptations:

  .Cell wall is made up of Lignin.

  .Walls are end to end but then then form hollow tubes