Prokaryotic cells Quiz
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5 questions, one answer each
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1. Which structure prevents a bacterium from bursting in dilute surroundings?
- A. Flagellum
- B. Ribosome
- C. Cell wall
- D. Plasmid
2. What is the function of bacterial pili?
- A. Attachment to surfaces and transfer of plasmids
- B. Movement through liquid
- C. Protein synthesis
- D. Storage of the main DNA
3. Which describes the main DNA of a bacterium?
- A. Linear chromosomes inside a nucleus
- B. A circular molecule free in the cytoplasm
- C. Circular DNA enclosed in a nuclear envelope
- D. Several chromosomes in the mitochondrion
4. A bacterium becomes antibiotic resistant after receiving a plasmid. Which process has occurred?
- A. Mitosis of the nucleus
- B. Endocytosis by phagocytes
- C. Diffusion through the cell wall
- D. Conjugation through a pilus
5. Which feature does a bacterium have but a human cell lacks?
- A. A peptidoglycan cell wall
- B. A cell surface membrane
- C. Ribosomes
- D. Cytoplasm