Cell Biology Quiz

Which of the following is a characteristic of prokaryotic cells?

• They have a nucleus.

• They are usually multicellular.

• Their DNA is circular and lacks introns.

• They contain 80S ribosomes.

What is a key difference between prokaryotic and eukaryotic cells?

• Prokaryotic cells have membrane-bound organelles.

• Eukaryotic cells lack a nucleus.

• Prokaryotic cells are usually larger in size.

• Eukaryotic cells have compartmentalised structures.

Which domain includes most extremophiles?

• Bacteria

• Archaea

• Eukarya

• Protista

What type of ribosomes do eukaryotic cells contain?

• 70S ribosomes

• 60S ribosomes

• 80S ribosomes

• 50S ribosomes

Which of the following is a common bacterial shape?

• Cuboidal

• Coccus

• Triangular

• Hexagonal

What is the function of pili in prokaryotic cells?

• Photosynthesis

• Surface attachment and plasmid exchange

• Protein synthesis

• Energy production

What is the genetic material in prokaryotic cells called?

• Chromatin

• Genophore

• Chromosome

• Nucleolus

What is the composition of the cell wall in bacteria?

• Cellulose

• Chitin

• Peptidoglycan

• Glycogen

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 nucleus

• A ribosome