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

• Hexagonal

• Triangular

What is the function of flagella in prokaryotic cells?

• To contain genetic material

• To facilitate movement

• To perform photosynthesis

• To store nutrients

What is the primary component of the cell wall in bacteria?

• Cellulose

• Chitin

• Peptidoglycan

• Lignin

What is the role of plasmids in bacteria?

• To store energy

• To facilitate photosynthesis

• To transfer genetic material

• To produce proteins

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

• A nucleus

• An organelle

• A virus

• A ribosome

What is the nucleoid in a prokaryotic cell?

• A membrane-bound organelle

• A region containing the genophore

• A protein synthesis site

• A storage area for nutrients