Multiple choice

Which of the following is a cytokine barrier?

  1. Lysozyme

  2. Macrophages

  3. Monocytes

  4. Interferon

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

When cells are infected by a virus, they produce small amounts of anti microbial proteins called interferons that increase the resistance of neighbouring cells to infection by the same or other viruses. Interferon is a cytokine barrier.