A sound engineer works during two recording sessions. Each session lasts 4 hours. The engineer starts each session with the same body water level and drinks the same volume of water.
| Session | Water lost through the skin and lungs in mL |
|---|---|
| P | 280 |
| Q | 640 |
Which statement predicts the response during session Q compared with session P?
Water loss through the skin and lungs is not directly controlled. Less ADH is released, so the kidney tubules reabsorb less water and a larger volume of urine is produced.
Water loss through the skin and lungs is directly controlled. Less ADH is released, so the kidney tubules reabsorb less water and a larger volume of urine is produced.
Water loss through the skin and lungs is not directly controlled. More ADH is released, so the kidney tubules reabsorb more water and a smaller volume of urine is produced.
Water loss through the skin and lungs is directly controlled. More ADH is released, so the kidney tubules reabsorb more water and a smaller volume of urine is produced.
85 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.