plumiAtherosclerosis: Edexcel International A Level Biology questions
Edexcel International A Level Biology past-paper questions on 1.3.1 Atherosclerosis, 2019–2025, with mark schemes and examiner’s reports where available.
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Q8(c)(iv)
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All 13 questions on Atherosclerosis, as a list
- June 2025, AS Unit 1, Q8(c)(iv) (3 marks): The scientists assessed the damage to endothelial cells. Explain why damage to endothelial cells might be an indication that a person is at risk of CVD. (3)
- January 2025, AS Unit 1, Q4(a) (2 marks): Describe the differences between CVD and CHD. (2)
- January 2025, AS Unit 1, Q4(c)(i) (2 marks): Explain why high blood pressure is a risk factor for CVD. (2)
- October 2024, Unit 5, Q8(a) (2 marks): Describe the possible role of hypertension (high blood pressure) in causing dementia (Paragraphs 2 and 19). (2)
- January 2024, AS Unit 1, Q8(b)(i) (1 mark): Calculate the mean rate of increase in the surface of arteries covered in lesions from 16 to 60 months in the primates given saturated lipids (graph 1). (1) Ans
- January 2024, AS Unit 1, Q8(b)(ii) (1 mark): Calculate the ratio of primates with atherosclerosis given saturated lipids to those given unsaturated lipids, at 32 months (graph 2). (1) Answer
- January 2024, AS Unit 1, Q8(b)(iii) (2 marks): Calculate the difference in the area of the atheromas in males compared with females, in primates given saturated fats (graph 3). Give your answer in µm2. (2) A
- January 2024, AS Unit 1, Q8(b)(iv) (6 marks): These primates were fed a diet supplemented with cholesterol and either saturated lipids or unsaturated lipids. Deduce the effects of these two diets on the dev
- January 2023, AS Unit 1, Q5(c) (3 marks): Explain why a diet that is low in saturated fat is likely to reduce the risk of CVD. (3)
- June 2022, Unit 5, Q8(f) (1 mark): State what is meant by the term ischemia (paragraph 12). (1)
- October 2021, AS Unit 1, Q7(b)(ii) (3 marks): The antioxidant properties of altered HDL are reduced. Explain the effect that this has on reducing the risk of heart disease. (3)
- June 2021, AS Unit 1, Q3(a) (3 marks): The diagram shows how stents are positioned in a diseased coronary artery. plaque stent balloon An uninflated balloon and narrow stent are inserted into the dis
- January 2021, AS Unit 1, Q7(d) (6 marks): The coronary artery may become completely blocked in people with CVD. The graph shows how the energy released by heart muscle cells changes after the coronary a
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