Barriers and non-specific defences Quiz
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5 questions, one answer each
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1. Which is the main role of the gut flora in defence?
- A. They compete with pathogens for nutrients and space
- B. They produce antibodies
- C. They secrete stomach acid
- D. They digest pathogen cell walls
2. What causes the heat and redness of inflammation?
- A. Increased capillary permeability
- B. Phagocyte activity
- C. Vasodilation increasing blood flow
- D. Release of interferon
3. Interferon protects a cell by
- A. destroying the virus particles outside cells
- B. stimulating enzymes that degrade viral mRNA
- C. making antibodies
- D. hydrolysing the capsid
4. Which enzyme in tears breaks down bacterial walls?
- A. Amylase
- B. Pepsin
- C. Reverse transcriptase
- D. Lysozyme
5. In phagocytosis, what releases digestive enzymes into the phagosome?
- A. Ribosomes
- B. Golgi vesicles making antibodies
- C. Lysosomes
- D. The nucleus