Biology 9700 · AS & A Level · The immune system

The immune system — practice question

Which of the following statements is correct about a neutrophil?

  • AThey are found in tissues and secrete cytokines in response to infection.
  • BThey can leave the blood and accumulate at sites of inflammation.
  • CThey can leave the blood and secrete cytotoxins when exposed to damaged cells.
  • DThey circulate in the blood and present antigens in response to infection.

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