plumiControlling heart rate: OCR A‑Level Biology A questions
OCR A-Level Biology A past-paper questions on 5.1.5.6 Controlling heart rate, 2016–2025, with mark schemes and examiner’s reports where available.
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Q2(b)
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All 7 questions on Controlling heart rate, as a list
- June 2025, Paper 3, Q2(b) (4 marks): A scientist studied the health outcomes of people with high blood pressure that were treated with either: • a new beta blocker treatment or • one of four establ
- June 2025, Paper 3, Q2(c) (2 marks): Heart rate is lowered when the heart receives stimulation from the vagus nerve. Explain why the vagus nerve is considered part of the peripheral nervous system
- June 2024, Paper 1, Q20(a)(iv) (4 marks): Use the data in Fig. 20.1 and Fig. 20.2 and your own knowledge of homeostatic control to explain the changes in breathing rate and heart rate during the experim
- November 2021, Paper 1, Q16(b)(i) (2 marks): Identify the letter and name of the structure in Fig. 16.2 that is connected by nerves to structure A in Fig. 16.1. Letter Name [2]
- November 2021, Paper 1, Q16(b)(ii) (2 marks): Normal human resting heart rate is approximately 70 beats per minute (bpm). Cutting the parasympathetic nerve to the heart increases this to approximately 100 b
- June 2018, Paper 1, Q15 (1 mark): The drug metoprolol prevents stimulation of post-synaptic receptors in the sympathetic nervous system. Which of the following conditions could this drug be used
- June 2018, Paper 1, Q23(b) (4 marks): The student wrote the following summary about the control of heart rate. When the heart rate is too low the level of carboxylic acid in the blood becomes higher
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