plumiThe cytoskeleton: OCR A‑Level Biology A questions
OCR A-Level Biology A past-paper questions on 2.1.1.5 The cytoskeleton, 2016–2025, with mark schemes and examiner’s reports where available.
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Q5(d)
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All 11 questions on The cytoskeleton, as a list
- June 2024, AS Paper 2, Q5(d) (3 marks): Outline the importance of the cytoskeleton. [3]
- June 2023, Paper 1, Q18(b)(i) (3 marks): Give three functions of the cytoskeleton. 1 2 3 [3]
- June 2023, Paper 1, Q18(b)(ii) (2 marks): Suggest how a mutation in cytoskeleton genes could cause a disease of the nervous system. [2]
- June 2023, AS Paper 1, Q9 (1 mark): What are the roles of the cytoskeleton in a human skin cell? A Movement of the cell through its environment and providing mechanical strength to the cell B Move
- November 2021, AS Paper 1, Q21(b)(ii) (3 marks): Tubulin is a globular protein that can polymerise to form the cell cytoskeleton. One example of this is the formation of microtubules, which form the spindle fi
- November 2021, AS Paper 1, Q21(b)(iii) (2 marks): Suggest two ways tubulin is essential to protein synthesis and protein secretion in eukaryotic cells. 1 2 [2]
- November 2020, Paper 3, Q4(a)(i) (1 mark): Suggest the function of Protein A. [1]
- November 2020, Paper 3, Q4(a)(ii) (1 mark): Suggest the function of Protein C. [1]
- November 2020, Paper 3, Q4(a)(iii) (1 mark): An antibiotic called A22 binds irreversibly to Protein B. Despite its antibiotic properties, A22 is not used in humans. Suggest why scientists have advised that
- June 2018, AS Paper 2, Q3(a) (1 mark): A cytoskeleton is present in all eukaryotic cells. One of its functions is to control the movement of organelles. State how the cytoskeleton moves organelles ar
- June 2018, AS Paper 2, Q3(b) (4 marks): Epithelial cells in the airways of mammals play an essential role in defences against pathogens. Explain the function of epithelial cells in the airways of mamm
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