The brain (biology only) — AQA GCSE Biology
Test yourself on The brain (biology only) with AQA GCSE practice questions.
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The brain (biology only) explained
The brain is the control centre of the nervous system and is responsible for complex behaviour such as learning, memory, emotion and coordinated movement.
Read the full explanation
It contains billions of neurones connected into extensive networks, allowing rapid electrical communication between distant regions. Different regions specialise: the cerebral cortex handles conscious thought, memory and language; the cerebellum coordinates balance and fine muscle movement; the medulla controls unconscious activities such as heart rate and breathing. Because regions have distinct roles, damage to one area produces specific effects, which is why brain mapping and scanning are important. Students should connect structure to function rather than simply listing parts.
Your focus
- Describe the brain as the organ that controls complex behaviour.
- Explain how interconnected neurones allow communication within the brain.
- Relate different brain regions to their specific functions.
The brain (biology only) exam tips
Marking Points
- States that the brain coordinates complex behaviour and processes information from receptors.
- Explains that the brain contains billions of interconnected neurones forming communication networks.
- Identifies that different regions of the brain carry out different specialised functions.
- Links at least one named region to its function, such as the medulla controlling heart rate and breathing.
- Recognises that damage to a region can affect the functions controlled by that region.
Examiner Tips
- 💡Use the phrase 'interconnected neurones' when explaining how the brain processes information.
- 💡Name the region and its function together in one sentence to gain credit efficiently.
- 💡If asked about complex behaviour, give a concrete example such as memory or coordinated movement.
Common Mistakes
- Saying the brain is a single uniform structure; the correction is that it has distinct regions with specialised roles.
- Confusing the roles of the cerebellum and medulla; the correction is that the cerebellum coordinates movement and balance while the medulla controls unconscious activities.
- Describing neurones as separate rather than interconnected; the correction is that billions of neurones form connected networks.