Cell Biology Quiz

Which of the following is a characteristic of prokaryotic cells?

• They have a nucleus.

• They contain 80S ribosomes.

• They are usually unicellular.

• Their DNA is linear.

What type of DNA do eukaryotic cells possess?

• Circular and naked

• Linear and packaged with histone proteins

• Circular and contains introns

• Linear and lacks introns

Which of the following is NOT a domain of prokaryotes?

• Bacteria

• Archaea

• Eukarya

• Extremophiles

What is the size range of prokaryotic cells?

• ~10–100µm

• ~1–5µm

• ~5–10µm

• ~100–200µm

Which bacterial shape is described as spherical?

• Bacillus

• Spirillus

• Coccus

• Rod

What is the function of flagella in prokaryotic cells?

• DNA replication

• Protein synthesis

• Bacterial movement

• Energy production

What is the primary component of the prokaryotic cell wall?

• Cellulose

• Peptidoglycan

• Chitin

• Lipids

What is the role of plasmids in prokaryotic cells?

• Energy storage

• Protein synthesis

• DNA transfer

• Photosynthesis

According to the theory of endosymbiosis, what did the engulfed cell become over time?

• A virus

• An organelle

• A nucleus

• A ribosome

Where is the genophore located in prokaryotic cells?

• Cytoplasm

• Nucleoid

• Ribosome

• Cell membrane