Bacteria and viruses Quiz
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5 questions, one answer each
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1. Which feature is present in a bacterium but absent from a virus?
- A. Nucleic acid
- B. A protein coat
- C. 70S ribosomes
- D. Attachment proteins
2. What is the role of reverse transcriptase in HIV?
- A. It makes RNA from a DNA template
- B. It makes DNA from viral RNA
- C. It breaks down the host cell membrane
- D. It makes the capsid protein
3. Why is TB hard to clear from the lungs?
- A. Bacteria cannot be engulfed by macrophages
- B. Bacteria survive digestion in macrophages because of their waxy wall
- C. TB is caused by a virus
- D. The bacteria have no genetic material
4. Which cell does HIV infect?
- A. Red blood cells
- B. B memory cells only
- C. Helper T cells
- D. Neurones
5. A patient with AIDS dies from pneumonia. What type of infection is this?
- A. Congenital
- B. Opportunistic
- C. Nosocomial
- D. Latent