A laboratory perfusion system circulates blood through a piece of liver and through blood vessels supplying skeletal muscle. The system allows the rate of blood flow to change.
Adrenaline is added to the blood. The liver tissue responds normally, but the muscle blood vessels cannot respond to adrenaline.
Which combination of changes is most likely?
Glucose release from the liver does not increase; blood flow through the muscle blood vessels does not increase.
Glucose release from the liver increases; blood flow through the muscle blood vessels increases.
Glucose release from the liver does not increase; blood flow through the muscle blood vessels increases.
Glucose release from the liver increases; blood flow through the muscle blood vessels does not increase.
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.