plumiWhat can happen when organs and control systems stop working?: OCR GCSE Biology B questions
Every OCR GCSE Biology B exam question on B5.6 What can happen when organs and control systems stop working?, 2018–2025, with its mark scheme and examiner’s report.
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Q5(b)(i)
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Q5(b)(ii)
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Q6(d)
The whole paper ↗Q8(a)
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Q8(b)
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The whole paper ↗Q8(d)
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The whole paper ↗Q1(a)
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Q1(b)
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The whole paper ↗Q6(a)
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Q6(b)
The whole paper ↗Q6(c)
The whole paper ↗Q6(d)
The whole paper ↗Q7(a)
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Q6(a)
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All 58 questions on What can happen when organs and control systems stop working?, as a list
- June 2025, Paper 1 Foundation, Q5(b)(i) (1 mark): Which part of the eye do cataracts affect? Tick (✓) one box. Cornea Iris Lens Retina [1]
- June 2025, Paper 1 Foundation, Q5(b)(ii) (2 marks): Dogs can have surgery for cataracts. Give one benefit and one risk of this treatment. Benefit Risk [2]
- June 2025, Paper 1 Foundation, Q6(c) (1 mark): Some people have kidney disease. This stops their kidneys from working efficiently. One solution for these people is to have a kidney transplant. A kidney is ta
- June 2025, Paper 1 Foundation, Q6(d) (2 marks): The graph shows information about organ transplants. It shows: • the number of people who received one of four types of transplant in a year • the number of peo
- June 2025, Paper 2 Foundation, Q8(a) (2 marks): Complete Table 8.2 to identify the variables in the investigation. Put one tick (3) in each row to show whether the variable is the dependent variable, the inde
- June 2025, Paper 2 Foundation, Q8(b) (1 mark): Suggest one other variable not included in Table 8.2 that should be controlled. [1]
- June 2025, Paper 2 Foundation, Q8(c) (2 marks): Calculate the number of lumens equivalent to a light level of 80%. Use the data in Table 8.1. Number of lumens equivalent to a light level of 80% = lumens [2]
- June 2025, Paper 2 Foundation, Q8(d) (1 mark): The student measures the pupil diameter by holding a ruler against the person’s eye. Suggest a safer way to measure the pupil diameter. [1]
- June 2025, Paper 2 Foundation, Q8(e) (3 marks): The student predicts that if a light brightness of 1200 lumens is tested, the pupil diameter will be approximately 2 mm. Explain why the student is correct. [3]
- June 2025, Paper 4 Higher, Q1(a) (2 marks): Complete Table 1.2 to identify the variables in the investigation. Put one tick (3) in each row to show whether the variable is the dependent variable, the inde
- June 2025, Paper 4 Higher, Q1(b) (1 mark): Suggest one other variable not included in Table 1.2 that should be controlled. [1]
- June 2025, Paper 4 Higher, Q1(c) (2 marks): Calculate the number of lumens equivalent to a light level of 80%. Use the data in Table 1.1. Number of lumens equivalent to a light level of 80% = lumens [2]
- June 2025, Paper 4 Higher, Q1(d) (1 mark): The student measures the pupil diameter by holding a ruler against the person’s eye. Suggest a safer way to measure the pupil diameter. [1]
- June 2025, Paper 4 Higher, Q1(e) (3 marks): The student predicts that if a light brightness of 1200 lumens is tested, the pupil diameter will be approximately 2 mm. Explain why the student is correct. [3]
- June 2024, Paper 1 Foundation, Q6(a) (1 mark): Which letter shows the retina? [1]
- June 2024, Paper 1 Foundation, Q6(b) (1 mark): Which letter shows the iris? [1]
- June 2024, Paper 1 Foundation, Q6(c) (1 mark): What role does the optic nerve have in the functioning of the eye? Tick (✓) one box. Bends light to focus it on the retina. Controls the amount of light that en
- June 2024, Paper 1 Foundation, Q6(d) (2 marks): Some babies are born with cataracts. Cataracts affect the lens. Explain how cataracts would affect a baby’s vision. [2]
- June 2024, Paper 3 Higher, Q7(a) (1 mark): Cataracts affect the lens. What role does the lens have in the functioning of the eye? [1]
- June 2023, Paper 3 Higher, Q6(a) (3 marks): Explain why horses that are at risk of laminitis should spend less time in fields eating grass. [3]
- June 2023, Paper 3 Higher, Q6(c) (1 mark): Blood glucose concentration is controlled by the same hormones in horses and humans. Name a hormone that controls the blood glucose concentration of the horses’
- June 2023, Paper 4 Higher, Q4(a) (2 marks): Draw lines to connect each structure with its correct function. Structure Function Ciliary muscle Changes the shape of the lens Cornea Changes the size of the p
- June 2023, Paper 4 Higher, Q4(b) (1 mark): Fig. 4.2 shows four ray diagrams. Fig. 4.2 Ray diagram A Ray diagram B Ray diagram C Ray diagram D Which ray diagram explains how the lens of the eye focuses li
- June 2023, Paper 4 Higher, Q4(c) (2 marks): Nina has cataracts in her eyes. Explain why Nina can only read if she uses a bright light. [2]
- June 2023, Paper 4 Higher, Q4(d)(i) (1 mark): Complete the ray diagram in Fig. 4.3 to show why Tom cannot see a distant object clearly. Fig. 4.3 Light from a distant object [1]
- June 2023, Paper 4 Higher, Q4(d)(ii) (1 mark): Tom tries on a pair of glasses. Complete the ray diagram in Fig. 4.4 to show how a lens in a pair of glasses allows Tom to see the distant object clearly. Fig.
- June 2023, Paper 4 Higher, Q5(c) (2 marks): The blood transports sugar and hormones that control the blood sugar level. Complete the sentences to explain how hormones control blood sugar level. Use words
- June 2023, Paper 4 Higher, Q5(d)(i) (2 marks): Explain how injecting embryonic stem cells into the pancreas could help to treat type 1 diabetes. [2]
- June 2023, Paper 4 Higher, Q5(d)(iii) (3 marks): People with type 2 diabetes have asked if they can also have the stem cell treatment. Explain why other treatments may be better for people with type 2 diabetes
- June 2022, Paper 1 Foundation, Q2(b) (1 mark): Insulin is an example of a hormone produced by the human body. Which disease can insulin be used to treat? [1]
- June 2022, Paper 1 Foundation, Q4(b) (1 mark): The organ that secretes insulin. [1]
- June 2022, Paper 1 Foundation, Q4(e) (1 mark): The part of the eye where an image forms. [1]
- June 2022, Paper 2 Foundation, Q7(a) (1 mark): A diagram of the eye is shown in Fig. 7.1. A B E D C Fig. 7.1 Which structure in the eye changes the size of the pupil? Tick (3) one box. A Ciliary muscles B Co
- June 2022, Paper 2 Foundation, Q7(c)(i) (2 marks): Identify the structure in the person’s eye that could be damaged by step 1, and suggest why the damage would affect the person’s vision. Structure that could be
- June 2022, Paper 2 Foundation, Q7(c)(ii) (2 marks): Identify the structure in the person’s eye that could be damaged by step 2, and suggest why the damage would affect the person’s vision. Structure that could be
- June 2022, Paper 3 Higher, Q7(b) (2 marks): State two conclusions that can be drawn from the data in Fig. 7.2. 1 2 [2]
- June 2022, Paper 4 Higher, Q1(a) (1 mark): A diagram of the eye is shown in Fig. 1.1. A B E D C Fig. 1.1 Which structure in the eye changes the size of the pupil? Tick (3) one box. A Ciliary muscles B Co
- June 2022, Paper 4 Higher, Q1(c)(i) (2 marks): Identify the structure in the person’s eye that could be damaged by step 1, and suggest why the damage would affect the person’s vision. Structure that could be
- June 2022, Paper 4 Higher, Q1(c)(ii) (2 marks): Identify the structure in the person’s eye that could be damaged by step 2, and suggest why the damage would affect the person’s vision. Structure that could be
- June 2022, Paper 4 Higher, Q1(d)(i) (1 mark): What was the diameter of the person’s pupil in complete darkness? Diameter = mm [1]
- June 2022, Paper 4 Higher, Q1(d)(ii) (2 marks): What would you conclude is the smallest possible diameter of the person’s pupil? Explain your answer. Smallest possible diameter = mm Explanation [2]
- June 2022, Paper 4 Higher, Q1(d)(iii) (2 marks): Calculate the rate at which the pupil diameter changed between 25% and 50% light brightness. Rate = mm / % [2]
- June 2022, Paper 4 Higher, Q1(e) (6 marks): The pupil of the human eye changes size in different light levels. (e)* Describe a method that can be used to collect the data shown in Fig. 1.3. Assume that 10
- November 2021, Paper 1 Foundation, Q2(a)(i) (1 mark): Which letter shows the lens? Tick (3) one box. A B C D [1]
- November 2021, Paper 1 Foundation, Q2(a)(ii) (1 mark): Which letter shows the part of the eye that controls the size of the pupil? Tick (3) one box. A B C D [1]
- November 2021, Paper 1 Foundation, Q2(b) (2 marks): Poor vision can be caused by a defect in the eye. Draw lines to connect each common defect with what it is caused by. Common defect Caused by Cataract The eyes
- November 2021, Paper 3 Higher, Q12(a) (3 marks): The statements explain how insulin and glucagon work together to control blood sugar. Complete the table by deciding if each statement explains the role of insu
- November 2020, Paper 1 Foundation, Q6(a) (3 marks): Complete the sentences to describe how insulin controls blood sugar levels. Use words from the list. You can use each word once, more than once, or not at all.
- November 2020, Paper 3 Higher, Q3(c) (1 mark): Humans also produce hormones. Name the hormone that lowers the blood sugar level in humans. [1]
- November 2020, Paper 3 Higher, Q9(a) (3 marks): Describe an experiment a doctor could perform to determine if a patient has iritis. [3]
- November 2020, Paper 3 Higher, Q9(b) (3 marks): Fig. 9.1 and Fig. 9.2 show the pupil size of an eye without iritis and an eye with iritis. Eye without iritis Eye with iritis Fig. 9.1 Fig. 9.2 Calculate the pe
- November 2020, Paper 4 Higher, Q5(c)(i) (2 marks): Explain why it is difficult to investigate brain function in a person with Huntington’s disease. [2]
- November 2020, Paper 4 Higher, Q5(c)(ii) (2 marks): The neurons that make up the brain cannot undergo mitosis. Explain what this means, and therefore why the brain damage caused by Huntington’s disease does not h
- June 2019, Paper 1 Foundation, Q9(b) (2 marks): What condition could the insulin produced in this process be used to treat? [2]
- June 2018, Paper 1 Foundation, Q1(a) (3 marks): Each part of the eye is adapted to its specific function. The table describes the functions of different parts of the eye. Complete the table by writing the par
- June 2018, Paper 1 Foundation, Q1(c) (3 marks): Amir is reading a newspaper but the words look blurry. When he looks out the window he can see everything outside clearly. Explain to Amir why the words in the
- June 2018, Paper 2 Foundation, Q1(a) (4 marks): There are two different types of diabetes. Put one tick (✓) in each row of the table to show whether the statement applies to both types of diabetes, only type
- June 2018, Paper 3 Higher, Q3(c)(iii) (1 mark): Scientists have been investigating the use of stem cells in the treatment of Parkinson’s disease. Suggest one feature of stem cells that makes them useful in th
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