Homeostasis is essential for maintaining a constant internal environment in the human body.
Define the term homeostasis and explain why maintaining stable internal conditions is important.
The kidneys play a crucial role in homeostasis by filtering the blood.
Describe what happens to amino acids, red blood cells, and urea in the kidneys.
Explain how the release of ADH (antidiuretic hormone) affects the reabsorption of water, and the volume and concentration of the urine produced.
62 exam-style questions on AQA GCSE Biology 5.3 Hormonal coordination in humans, covering 5.3.1 Human endocrine system, 5.3.2 Control of blood glucose concentration, 5.3.3 Maintaining water and nitrogen balance in the body, 5.3.4 Hormones in human reproduction, 5.3.5 Contraception, 5.3.6 The use of hormones to treat infertility (HT only), and 5.3.7 Negative feedback (HT only). Each one has a worked solution and a mark scheme showing where the marks go.