Communicable Diseases and Pathogens Quiz
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5 questions, one answer each
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1. Which of the following is a pathogen that causes disease by producing toxins rather than by directly damaging cells?
- A. Salmonella bacteria
- B. HIV virus
- C. Malaria protist
- D. Rose black spot fungus
2. Tuberculosis is spread through the air when an infected person coughs. What type of pathogen causes tuberculosis?
- A. A virus
- B. A bacterium
- C. A fungus
- D. A protist
3. A student is researching how to prevent the spread of malaria in tropical regions. Which statement best describes the main transmission route of malaria?
- A. It is spread by direct contact between infected and uninfected people
- B. It is spread through contaminated water sources
- C. It is spread by a vector—specifically, mosquitoes carrying the protist pathogen
- D. It is spread through the air when infected people sneeze or cough
4. Two students discuss how diseases spread. Student A claims gonorrhoea is spread by direct contact, while Student B claims it is spread through water. Which student is correct and why?
- A. Student A is correct because gonorrhoea is a bacterial disease spread through sexual contact
- B. Student B is correct because all bacterial diseases are spread through water
- C. Neither student is correct; gonorrhoea is spread by vectors
- D. Both are correct; gonorrhoea can be spread by multiple routes
5. A farmer wants to reduce the spread of rose black spot disease in their greenhouse. Based on knowledge of how this disease spreads and what causes it, which of the following strategies would be most effective?
- A. Vaccinating all plants against the fungal pathogen
- B. Improving air circulation and reducing leaf wetness, since the fungus spreads through water on plant surfaces
- C. Isolating infected plants from uninfected people to prevent direct contact transmission
- D. Adding antibiotics to the soil to kill the fungal pathogen