Science B, Combined (9-1) - Twenty First Century Science Suite J260 9-1: B2: Keeping healthy Topical Past Paper Questions
OCR GCSE (9-1) Science B, Combined (9-1) - Twenty First Century Science Suite J260 (9-1) past-paper questions on B2: Keeping healthy, free. This topic is frequently examined across 6 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
An antibiotic sensitivity test can help researchers to develop new antibiotics. The test procedure is: 1. Spread bacteria on an agar plate. 2. Soak discs of paper in different antibiotics. 3. Place the discs of paper on an agar plate. 4. Incubate the agar plate so that the bacter…
Nina is studying potable (clean drinking) water. (a) Two sources of potable water are waste water and sea water. Identify one other source of potable water. [1] (b) The diagram shows the stages in the treatment of waste water. (i) Describe the function of the 'aeration' and 'bact…
(a) Diseases can be communicable or non-communicable. Which statements describe communicable diseases and which statements describe non-communicable diseases? Tick one box (✓) in each row. [2] [2] (b) Measles is caused by a virus. White blood cells help protect us against measles…
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