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OCR AS LEVEL JUNE 2022 BIOLOGY B PAPER 1 QUESTION PAPER
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OCR AS LEVEL JUNE 2022 BIOLOGY B PAPER 1 QUESTION PAPER
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OCR A LEVEL 2022PAPERS AND
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, 2
SECTION A
You should spend a maximum of 25 minutes on this section.
Write your answer for each question in the box provided.
Answer all the questions.
1 Which option is a short-term effect of a pollutant on the respiratory system?
A Asthma attack
B Chronic bronchitis
C Emphysema
D Lung cancer
Your answer
[1]
2 Herceptin is a drug used in immunotherapy to treat breast cancer.
Which of the statements about treating cancer with Herceptin is correct?
A Chemicals bind to oestrogen to prevent transcription in cancer cells.
B Ionising radiation binds to cancer cells.
C Specialised antibodies are attracted to cancer cells.
D Toxic chemicals destroy cancer cells.
Your answer
[1]
3 Which of the statements about a false-negative screening test for breast cancer is correct?
A A follow-up biopsy confirms that no cancer is present in the breast tissue.
B A mammogram looks abnormal even though no cancer is present.
C A mammogram looks normal even though cancer is present.
D The person looking at the mammograms records a positive result by mistake.
Your answer
[1]
© OCR 2022
, 3
4 When the number of people in a population that are immune to a disease reaches a herd
immunity threshold (HIT) value then the disease is no longer present in that population.
The table shows data for four diseases, A to D, in a population of 50 000 people.
Disease Number of people with Herd immunity threshold (%)
immunity to the disease
A 44 000 92–94
B 38 000 83–86
C 39 000 80–96
D 41 000 75–86
Which of the diseases is no longer present in this population?
Your answer
[1]
5 The diphtheria vaccine contains a bacterial toxin that results in the production of antibodies when
injected into the body.
Which type of immunity is provided by the diphtheria vaccine?
A Artificial active immunity
B Artificial passive immunity
C Natural active immunity
D Natural passive immunity
Your answer
[1]
© OCR 2022 Turn over
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