Biology — Homeostasis and the Nervous System

Exam board: AQA  |  Back to subjects

Board-Specific Note

AQA specification; content aligns with the national A-Level syllabus.

Learning Objectives

• Explain homeostasis
• Describe the nervous system
• Understand hormonal control

Key Points

• Negative feedback maintains balance
• Neurones transmit impulses
• Hormones travel in the blood

Lesson Plan (50 minutes)

1. Starter (5 min): Recall prior knowledge of homeostasis and the nervous system with quick questions.
2. Teaching (15 min): Work through each of the learning objectives, explaining principles step by step.
3. Key points review (5 min): Revisit the key points together, confirming understanding.
4. Worked example (10 min): Model the example question: What controls blood glucose?. Solution: Insulin (and glucagon)
5. Practice (10 min): Students attempt the practice questions independently; circulate and support.
6. Plenary (5 min): Review answers and address misconceptions.

Homework

• Define homeostasis
• Name the parts of a neurone
• What is the role of adrenaline?

Assessment

Check practice answers against the model answer; use the built-in practice questions as formative assessment.