n- $2 \\rightarrow C$ B1\n- $3 \\rightarrow A$ B1\n- $4 \\rightarrow D$ B1","marks":4,"order":2,"markingRubric":null,"explanation":null,"options":[]},{"id":"e29e728f-5735-4436-bc3d-d784ad6123e5","label":"d","content":"The active transport of ions to maintain a neuron's resting potential relies on the sodium-potassium pump, which is a specialized transmembrane protein. Which chemical building blocks are polymerized to synthesize this pump?","markscheme":"- Amino acids B1","marks":1,"order":3,"markingRubric":null,"explanation":{"methods":[{"id":"protein_building_blocks","label":"Identify the protein building block","steps":[{"type":"text","order":0,"title":"Identify the building blocks","content":"The sodium-potassium pump is described as a specialised transmembrane **protein**. Proteins are polymers: large molecules made by joining many smaller units together. Those units are **amino acids**.\n\nWrite **amino acids**. This earns the B1 mark.","highlights":[{"text":"specialized transmembrane protein","location":"specification"},{"text":"Which chemical building blocks are polymerized to synthesize this pump?","location":"specification"}]}]}],"generatedAt":"2026-07-22T08:27:36.650Z","modelVersion":"gpt-5.6-terra+diagrams-1","explanationVersion":"v3"},"options":[]},{"id":"362c7543-1f24-4b0c-b18b-2e8e35dab3f7","label":"e","content":"The coordination of voluntary muscle movement, posture, and motor learning is controlled by a major region situated at the base of the brain. Name this region of the brain.","markscheme":"- Cerebellum B1","marks":1,"order":4,"markingRubric":null,"explanation":{"methods":[{"id":"identify_brain_region","label":"Identify the brain region","steps":[{"type":"text","order":1,"title":"Match the function","content":"The clue is **“coordination of voluntary muscle movement, posture, and motor learning”**. These functions are controlled by the **cerebellum**.\n\nWrite **cerebellum**. **[B1]**","highlights":[{"text":"coordination of voluntary muscle movement, posture, and motor learning","location":"specification"}]}]}],"generatedAt":"2026-07-22T08:32:54.516Z","modelVersion":"gpt-5.6-terra+diagrams-1","explanationVersion":"v3"},"options":[]}],"options":[],"explanation":null,"firstAttemptFullMarks":null},{"id":"30e79053-f34f-49fe-9cef-c629ae2192f9","revisionId":"1e84a91c-7347-4fe1-ba44-b9104a91b3ae","questionNumber":null,"questionType":"MC","specification":"Which vision-related condition can be caused by a lens in the eye that is too thin?","difficulty":4,"difficultyBand":"easy","totalMarks":1,"sourceTitle":null,"calculatorUse":null,"parts":[],"options":[{"id":"7b404e75-29b3-4113-9b86-8cee6da5a246","content":"Short-sightedness","correct":false,"markscheme":"Short-sightedness (myopia) is caused by a lens that is too thick or powerful, or an eyeball that is too long, causing light from distant objects to focus in front of the retina.","order":0},{"id":"66abc3dd-8463-49af-baa0-782fd3f2170f","content":"Colour blindness","correct":false,"markscheme":"Colour blindness is a genetic condition caused by a deficiency or lack of function in cone photoreceptors in the retina, not by the shape of the lens.","order":1},{"id":"193e6589-3db6-47e5-9f77-df306c3fb53f","content":"Long-sightedness","correct":true,"markscheme":"A lens that is too thin cannot refract light sufficiently, causing the focal point of near objects to lie behind the retina, which is characteristic of long-sightedness.","order":2},{"id":"97f3507a-18b7-4817-b3a6-1e0e3cc91525","content":"Astigmatism","correct":false,"markscheme":"Astigmatism is caused by an irregular or asymmetrical curvature of the cornea or lens, leading to blurred or distorted vision at all distances.","order":3}],"explanation":null,"firstAttemptFullMarks":null},{"id":"378a6789-213a-4411-92cd-0e913b3577fe","revisionId":"af06640a-6f53-46b3-b3a7-d164671ed49c","questionNumber":null,"questionType":"MC","specification":"Which sequence shows the correct pathway of a nervous response to a stimulus during a reflex acti

Coordination and control – the nervous system

Question 10

Coordination and control – the nervous system Questions

Coordination and control – the nervous system

Question 10

Coordination and control – the nervous system Questions