3.6 Organisms respond to changes in their internal and external environments (A-level only): AQA A-Level Biology Questions

Practise 3.6 organisms respond to changes in their internal and external environments (a-level only) with AQA A-Level Biology questions and mark schemes. Revise 3.6.1.1 Survival and response (A-level only), 3.6.1.2 Receptors (A-level only), 3.6.1.3 Control of heart rate (A-level only).

Practise 3.6 organisms respond to changes in their internal and external environments (a-level only)

The topics below follow the course specification. Question availability depends on the papers uploaded; use the question bank filters to see current coverage.

What to revise

3.6.1.1 Survival and response (A-level only)
3.6.1.2 Receptors (A-level only)
3.6.1.3 Control of heart rate (A-level only)
3.6.2.1 Nerve impulses (A-level only)
3.6.2.2 Synaptic transmission (A-level only)
3.6.3 Skeletal muscles are stimulated to contract by nerves and act as effectors (A-level only)
3.6.4.1 Principles of homeostasis and negative feedback (A-level only)
3.6.4.2 Control of blood glucose concentration (A-level only)
3.6.4.3 Control of blood water potential (A-level only)

Use questions to check your understanding

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