This exam focus covers Exam Focus within Nervous System for GCSE Biology. Topic 2: Nervous System It is section 15 of 17 in this topic. Treat this as a marking guide for what examiners are looking for, not just a fact list.
Topic position
Section 15 of 17
Practice
15 questions
Recall
20 flashcards
🎯 Exam Focus
Exam FavouriteThe nervous system is the highest-frequency topic in Unit 6, appearing in 4 out of 5 recent AQA Paper 2 exams. Expect 4-8 marks, often combined with the reflex arc or reaction time practical.
How it is tested:
- Describe the pathway (2-3 marks): Sequence from stimulus to response — name each neurone type.
- Explain synapse transmission (3-4 marks): Four steps: impulse arrives → neurotransmitter released → diffuses and binds → new impulse.
- Compare nervous and hormonal systems (4 marks): Speed, duration, specificity — give BOTH sides for each comparison point.
- RPA7 reaction time (3-4 marks): Variables, controls, why repeat and average.
- Higher tier — Brain regions (2-3 marks): Name and state the function of cerebrum, cerebellum, medulla.
- Higher tier — Eye and accommodation (4-6 marks): Label eye parts, explain how the lens changes shape for near/far objects, describe myopia/hyperopia correction.