Cell Structure and Function

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

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

What is the approximate size of human red blood cells?

• 3.0 µm
• 5.0 µm
• 10.0 µm
• 7.0 µm

Which of the following is a characteristic of nerve cells?

• They carry oxygen
• They are the smallest cells
• They lack a nucleus
• They are some of the longest cells

What is the size range of most bacterial cells?

• 5–10 µm
• 10–20 µm
• 20–30 µm
• 1–5 µm

What is the basic shape of bacillus bacteria?

• Spherical
• Comma-shaped
• Spiral
• Rod-like