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Immunity and vaccination

Quiz by Oak National Academy: GCSE Biology AQA Higher

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6 questions
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  • Q1
    What is immunity?
    The ability to engulf and digest a pathogen.
    The ability to recognise an antigen the first time the body is exposed to it.
    The ability to respond quickly to an antigen when the body is re-exposed to it.
    30s
  • Q2
    Put these steps in the correct order to explain how a vaccine works.
    Users link answers
    Linking
    30s
  • Q3
    Which type of blood cell remains in the blood after the first exposure to an antigen and provides immunity?
    Answer Image
    Answer Image
    Answer Image
    Answer Image
    30s
  • Q4
    What happens if a person is reinfected with the pathogen they were vaccinated against?
    Memory cells are able to quickly produce antibodies.
    Memory cells are able to quickly produce antigens.
    Memory cells are able to quickly produce a mutation.
    30s
  • Q5
    True or false? Memory cells are lymphocytes.
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    true
    false
    True or False
    30s
  • Q6
    Why is it difficult to make a single vaccine against influenza?
    White blood cells mutate regularly so they no longer recognise influenza.
    Antibodies mutate when they encounter influenza and become harmful to the body.
    Antigens on the pathogen mutate regularly so memory cells can't respond as well.
    30s

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