plumiThe kidney: OCR A‑Level Biology A questions
OCR A-Level Biology A past-paper questions on 5.1.2.2 The kidney, 2016–2025, with mark schemes and examiner’s reports where available.
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Q19(b)(i)
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All 12 questions on The kidney, as a list
- June 2023, Paper 1, Q19(b)(i) (3 marks): Fig. 19.1 is a drawing of a longitudinal section of a kidney. Fig. 19.1 T U V Identify the parts of the kidney labelled T, U and V. T U V [3]
- June 2023, Paper 1, Q19(b)(ii) (2 marks): Fig. 19.2 is a photomicrograph of a cross-section of part of the kidney. Fig. 19.2 × 360 Using the letter T, U or V from Fig. 19.1, identify the part of the kid
- June 2023, Paper 1, Q19(c)(i) (3 marks): Complete the table using the most appropriate letter or letters, W to Z, to show which part(s) of the nephron correspond to each of the statements. Each letter
- June 2023, Paper 1, Q19(c)(ii) (3 marks): Fig. 19.3 shows an increasing solute concentration. Outline the processes in the loop of Henle that cause the solute concentration to increase. [3]
- November 2020, Paper 3, Q1(a) (2 marks): A student dissected a kidney. Fig. 1.1 shows one half of the dissected kidney. Fig. 1.1 Draw a simple diagram of the kidney in Fig. 1.1 in the space below. On y
- November 2020, Paper 3, Q1(b)(i) (1 mark): State one function of the distal convoluted tubule. [1]
- November 2020, Paper 3, Q1(b)(ii) (1 mark): Describe the function of the structures labelled A in Fig. 1.2. [1]
- November 2020, Paper 3, Q1(b)(iii) (1 mark): Suggest which lumen, B or C, has the highest concentration of urea. Explain your answer. [1]
- June 2018, Paper 3, Q6(a) (6 marks): The process of ultrafiltration in the kidney shares similarities with the formation of tissue fluid. (a)* Describe the similarities and differences between ultr
- June 2017, Paper 1, Q22(a)(i) (1 mark): Which letter identifies the region with the highest hydrostatic pressure? [1]
- June 2017, Paper 1, Q22(a)(ii) (1 mark): Which two letters identify regions that do not contain plasma proteins? [1]
- June 2017, Paper 1, Q22(b)(i) (3 marks): Using this information and your own knowledge, compare the processes occurring in the proximal and distal convoluted tubules. [3]
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