Prokaryotic vs. Eukaryotic Cells: Key Differences and Characteristics

Mrs. Homer explains the differences between prokaryotic and eukaryotic cells, highlighting their structures and functions. All cells share common features like a cell membrane, DNA, cytosol, and ribosomes. Eukaryotic cells have a nucleus and membrane-bound organelles, making them complex and often multicellular. Prokaryotic cells lack a nucleus and are simpler, usually unicellular. The endosymbiotic theory suggests eukaryotic cells evolved from prokaryotic cells through symbiosis.

What is the most basic unit that makes up a living thing?

• Organism

• Tissue

• Organ

• Cell

Which of the following is NOT a common feature of all cells?

• Cell membrane

• DNA

• Ribosomes

• Nucleus

What does the 'you' in eukaryotic cells signify?

• They are prokaryotic

• They are unicellular

• They have no nucleus

• They have a nucleus

Which organelle is NOT found in prokaryotic cells?

• Ribosomes

• Mitochondria

• DNA

• Cytoplasm

What is a characteristic feature of eukaryotic cells?

• They lack membrane-bound organelles

• They are always unicellular

• They are smaller than prokaryotic cells

• They have a nucleus

Which of the following is true about prokaryotic cells?

• They are typically larger

• They are always unicellular

• They have membrane-bound organelles

• They have a nucleus

What is the main difference between eukaryotic and prokaryotic cells?

• Presence of a nucleus

• Presence of DNA

• Presence of a cell membrane

• Presence of ribosomes

Which of the following is NOT a characteristic of eukaryotic cells?

• They are complex

• They can be part of multicellular organisms

• They have membrane-bound organelles

• They are typically smaller

What does the endosymbiotic theory suggest?

• Eukaryotic cells evolved from prokaryotic cells

• Prokaryotic cells evolved from eukaryotic cells

• Eukaryotic cells and prokaryotic cells evolved independently

• Prokaryotic cells do not exist

According to the endosymbiotic theory, what happened when one bacterium engulfed another?

• They lost their DNA

• They became prokaryotic cells

• They started to live together in harmony

• They both died