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Component 3: Requirements for Life (Section B options)

3 dot points across 3 inquiry questions. Click any dot point for a focused answer with worked past exam questions where available.

How do bones, joints and muscles work together to produce movement?

Option B Human musculoskeletal anatomy: the structure of the skeleton and joints; antagonistic muscle action; the structure of skeletal muscle; the sliding filament theory of contraction; and musculoskeletal injuries.
A focused answer to the Eduqas Component 3 Option B on the human musculoskeletal system. Covers the skeleton and synovial joints, antagonistic muscle action, skeletal muscle structure, the sliding filament theory of contraction, and musculoskeletal injuries.
13 min answer →

How does the body defend itself against pathogens, and how do vaccines and antibiotics help?

Option A Immunology and disease: pathogens and disease transmission; non-specific defences; the specific immune response; antibodies; active and passive immunity; vaccination; and antibiotics.
A focused answer to the Eduqas Component 3 Option A on immunology and disease. Covers pathogens, non-specific defences, the specific cellular and humoral immune response, antibodies, active and passive immunity, vaccination, herd immunity, and antibiotics.
14 min answer →

How is the brain organised, and how do innate and learned behaviours arise?

Option C Neurobiology and behaviour: the structure and functions of the human brain; methods of studying the brain; innate and learned behaviour; types of learning; and the role of behaviour in survival.
A focused answer to the Eduqas Component 3 Option C on neurobiology and behaviour. Covers the structure and functions of the human brain, methods of studying it, innate and learned behaviour, types of learning, and the role of behaviour in survival.
13 min answer →