3.13B Vaccination and memory cells
Exam question
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What does a vaccine contain?
(1)Total for this question: 1 mark
3(h) TRANSPORT · EXAM QUESTIONS
3.13B Vaccination and memory cells
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3.13B Vaccination and memory cells
Exam question
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Explain how vaccination protects a person against a disease.
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Total for this question: 4 marks
3.13B Vaccination and memory cells
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Antibody concentration after two exposures to the same antigen Week Antibody / arbitrary units 0 (first exposure) 0 2 10 4 4 6 (second exposure) 3 7 90 8 120 Illustrative data, not from a real investigation. Use the table to compare the response to the first and second exposure.
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Total for this question: 3 marks
3.13B Vaccination and memory cells
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Antibody concentration after two exposures to the same antigen Week Antibody / arbitrary units 0 (first exposure) 0 2 10 4 4 6 (second exposure) 3 7 90 8 120 Illustrative data, not from a real investigation. Calculate how many times greater the peak antibody concentration was after the second exposure.
(2)timesTotal for this question: 2 marks
3.13B Vaccination and memory cells
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Antibody concentration after two exposures to the same antigen Week Antibody / arbitrary units 0 (first exposure) 0 2 10 4 4 6 (second exposure) 3 7 90 8 120 Illustrative data, not from a real investigation. Explain why the person does not show symptoms after the second exposure.
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Total for this question: 2 marks
3.13B Vaccination and memory cells
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Explain why some vaccines need a booster dose.
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Total for this question: 2 marks
3.13B Vaccination and memory cells
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Explain why a new influenza vaccine is needed most years.
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Total for this question: 3 marks
3.13B Vaccination and memory cells
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Explain why vaccinating most of a population protects people who cannot be vaccinated.
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Total for this question: 3 marks
3.13B Vaccination and memory cells
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Illustrative data.
Measles cases and vaccination in a country Year Vaccination rate / % Cases per 100 000 2010 95 1 2014 88 14 2018 81 46 2022 93 5 Illustrative data, not from a real investigation. Describe the relationship between vaccination rate and measles cases.
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Total for this question: 2 marks
3.13B Vaccination and memory cells
Exam question
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Measles cases and vaccination in a country Year Vaccination rate / % Cases per 100 000 2010 95 1 2014 88 14 2018 81 46 2022 93 5 Illustrative data, not from a real investigation. Suggest why cases rose between 2010 and 2018.
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Total for this question: 2 marks
3.13B Vaccination and memory cells
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Which cells give long-term immunity after vaccination?
(1)Total for this question: 1 mark
3.13B Vaccination and memory cells
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Compare active immunity from a vaccine with passive immunity from injected antibodies.
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Total for this question: 2 marks
3.13B Vaccination and memory cells
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Explain why the antigens in a vaccine must be the same shape as those on the pathogen.
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Total for this question: 2 marks
3.13B Vaccination and memory cells
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Illustrative figures.
Evaluate the use of a vaccine that causes a sore arm in 1 in 10 people and prevents a disease that kills 1 in 500 infected people.
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Total for this question: 3 marks
3.13B Vaccination and memory cells
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Suggest why vaccines are not available for every disease.
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Total for this question: 2 marks