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 and lack compartmentalisation.

• Their DNA is linear and packaged with histone proteins.

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 pili in prokaryotic cells?

• Photosynthesis

• Surface attachment and plasmid exchange

• Protein synthesis

• Energy production

Where is the genophore located in a prokaryotic cell?

• Cytoplasm

• Nucleus

• Nucleoid

• Cell membrane

What is the composition of the cell wall in bacteria?

• Cellulose

• Chitin

• Peptidoglycan

• Lipids

What is the role of flagella in prokaryotic cells?

• DNA replication

• Nutrient absorption

• Bacterial movement

• Protein synthesis

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

• A virus

• An organelle

• A new bacterium

• A nucleus