Homeostasis, hormones and disease

Free ESAT Biology lesson. Worked examples, common mistakes and a self-check.

What the lesson covers

  • Homeostasis and negative feedback (B9.3)
  • Blood glucose and diabetes (B9.3)
  • Water balance and temperature control (B9.3)
  • Hormones, the menstrual cycle and contraception (B9.4)
  • Communicable disease (B9.5)
  • Defence, vaccines, antibiotics and drug testing (B9.5)
  • Non-communicable disease (B9.5)
  • Putting it together
  • Self-check questions with answers (8)

Specification: B9.3-9.5. Codes follow the UAT-UK ESAT content specification.

How to use it

  1. Read a section, then cover the worked example and try it yourself.
  2. Check the common mistakes list: these are the slips the real test is built to catch.
  3. Do the self-check without looking back. Mark it against the answers.
  4. Then practise the topic under time, with the matching practice set.

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