A patient feels anxious while waiting for dental treatment. The concentration of adrenalin in the patient's blood rises.
The table shows measurements taken before the patient became anxious and while the patient was anxious.
| Measurement | Before the patient became anxious | While the patient was anxious |
|---|---|---|
| heart rate in beats per minute | 72 | 96 |
| blood glucose concentration in mmol dm⁻³ | 4.9 | 5.6 |
| blood flow to skeletal muscles in dm³ per minute | 0.9 | 1.4 |
Name the endocrine glands that released the adrenalin.
State which result in the table provides evidence that the liver responded to adrenalin.
Give the two changes in the table that move blood to the skeletal muscles more quickly.
Name one substance carried by the blood that muscle cells use in aerobic respiration.
89 exam-style questions on Edexcel GCSE Biology 7.1 Hormones and coordination, covering 7.1.1 Endocrine glands and hormone transport, 7.1.2 Adrenalin and fight or flight, and 7.1.3 Thyroxine and negative feedback. Each one has a worked solution and a mark scheme showing where the marks go.