plumiOxidative phosphorylation and chemiosmosis: OCR A‑Level Biology A questions
OCR A-Level Biology A past-paper questions on 5.2.2.4 Oxidative phosphorylation and chemiosmosis, 2016–2025, with mark schemes and examiner’s reports where available.
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Q2(c)(i)
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Open the full PDFQ19(c)(ii)
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All 7 questions on Oxidative phosphorylation and chemiosmosis, as a list
- June 2023, Paper 3, Q2(c)(i) (2 marks): A mitochondrion is shown in Fig. 2.3. Label Fig. 2.3 to show the locations where FAD gains H atoms and where FAD releases H atoms during respiration. • Use the
- June 2022, Paper 1, Q19(d) (6 marks): (d)* Muscle contraction requires energy in the form of ATP. Describe the different sources of the ATP that is used in muscle contraction during strenuous exerci
- November 2021, Paper 3, Q4(c) (3 marks): Most ATP is produced in mitochondria by chemiosmosis. Outline how ATP is produced in mitochondria by chemiosmosis. [3]
- November 2020, Paper 1, Q19(b) (2 marks): Describe two ways in which the structure of mitochondrial membranes is related to the function of a mitochondrion. 1 2 [2]
- June 2018, Paper 1, Q11 (1 mark): Which of the following, A to D, is a similarity in the way ATP is made in respiration and photosynthesis? A both involve NAD B both involve substrate level phos
- June 2018, Paper 1, Q19(c) (6 marks): Honeypot ants belong to several different genera. Some specialised individuals are used as food storage vessels. These individuals have swollen abdomens that st
- June 2017, Paper 1, Q19(c)(ii) (1 mark): What can be concluded about the difference between the effects of cyanide and fluoride on respiration in sperm? [1] for the next question
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