The pancreas produces the hormone glucagon, which plays a key role in regulating blood glucose concentration. Select the statement that incorrectly describes the action of glucagon:
It binds to specific receptors on the cell surface membrane of hepatocytes.
It activates enzymes that catalyse the condensation of glucose to form glycogen.
It activates adenylate cyclase, which leads to the formation of cyclic AMP (cAMP\text{cAMP}cAMP).
It stimulates the conversion of non-carbohydrates, such as glycerol and amino acids, into glucose.
Practise AQA A Level Biology Homeostasis is the maintenance of a stable internal environment (A-level only) with exam-style questions for A Level Biology. 21 questions covering Principles of homeostasis and negative feedback (A-level only), Control of blood glucose concentration (A-level only), and Control of blood water potential (A-level only), matched to the AQA A Level Biology (7402) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
