Prokaryotic cells

• What is a characteristic of prokaryotic cells regarding their nucleus?


  They have no true nucleus, just an area where DNA is found.
• How is prokaryotic DNA different from eukaryotic DNA?


  Prokaryotic DNA is not associated with proteins, while eukaryotic DNA is associated with histones.
• What are plasmids?


  Plasmids are circular strands of DNA that may be present in prokaryotic cells.
• What type of organelles are absent in prokaryotic cells?


  No membrane-bounded organelles are present in prokaryotic cells.
• What type of chlorophyll is found in prokaryotic cells?


  Prokaryotic cells contain bacterial chlorophyll, not chloroplasts.
• How do ribosomes in prokaryotic cells compare to those in eukaryotic cells?


  Ribosomes in prokaryotic cells are smaller than those in eukaryotic cells.
• What is the composition of the cell wall in prokaryotic cells?


  The cell wall in prokaryotic cells is made of murien.
• What is a capsule in prokaryotic cells?


  A capsule is an outer mucilaginous layer that may be present in prokaryotic cells.
• What is a defining feature of eukaryotic cells regarding their nucleus?


  Eukaryotic cells have a distinct nucleus with a nuclear envelope.
• How is eukaryotic DNA structured compared to prokaryotic DNA?


  Eukaryotic DNA is associated with proteins called histones and is linear, while prokaryotic DNA is not associated with proteins and may be circular.
• What organelles are present in eukaryotic cells?


  Eukaryotic cells contain membrane-bounded organelles such as mitochondria.
• Which cells contain chloroplasts?

  Chloroplasts are present in plant and algal cells.
• How do ribosomes in eukaryotic cells compare to those in prokaryotic cells?


  Ribosomes in eukaryotic cells are larger than those in prokaryotic cells.
• What is the composition of the cell wall in eukaryotic cells where present?


  The cell wall in eukaryotic cells is mostly made of cellulose.
• Do eukaryotic cells have a capsule?


  No, eukaryotic cells do not have a capsule.
• What are the main differences between prokaryotic and eukaryotic cells?


  • Prokaryotic cells have no true nucleus; eukaryotic cells have a distinct nucleus.
  • Prokaryotic DNA is circular and not associated with proteins; eukaryotic DNA is linear and associated with histones.
  • Prokaryotic cells lack membrane-bounded organelles; eukaryotic cells have them.
  • Prokaryotic cells have bacterial chlorophyll; eukaryotic cells have chloroplasts.
  • Ribosomes in prokaryotic cells are smaller; ribosomes in eukaryotic cells are larger.
  • Prokaryotic cell walls are made of murien; eukaryotic cell walls are mostly made of cellulose.
  • Prokaryotic cells may have a capsule; eukaryotic cells do not.