Cell Structure and Function

What is a key feature of prokaryotic cells?

• Presence of a nucleus
• Complex internal structure
• Lack of a nucleus
• Large size

Which of the following bacterial shapes is comma-like?

• Coccus
• Spirillum
• Vibrio
• Bacillus

What is the largest known single cell?

• Human nerve cell
• Bacterial cell
• Ostrich egg
• Human red blood cell

What is the size range of most plant and animal cells?

• 1–5 µm
• 3–5 µm
• 10–30 µm
• 100–150 µm

Which cell type has a columnar shape?

• Nerve cell
• Red blood cell
• Columnar epithelial cell
• White blood cell