Question

Which of the following statements is true regarding bacteria and animal cells?
A.
A bacterial cell is much smaller than an animal cell.
B.
A bacterium contains a nucleus, but an animal cell does not.
C.
An animal cell contains a cell wall, but a bacterium does not.
D.
An animal cell is much smaller than a bacterial cell.

Answer 1

A. A bacterial cell is much smaller than an animal cell.

Explanation: Bacteria are prokaryotes (typically ~0.5–5 μm) and lack a nucleus; animal cells are eukaryotes (typically ~10–100 μm) and have a nucleus. Bacteria generally have cell walls; animal cells do not.