Which of the following statements correctly describes the neural and hormonal mechanisms regulating human eating behaviour?
Ghrelin is an anorexigenic hormone secreted by the pancreas that promotes satiety, whereas leptin is an orexigenic hormone released by the stomach that stimulates hunger.
Ghrelin is an orexigenic hormone secreted by the stomach that stimulates hunger, whereas leptin is an anorexigenic hormone released by adipose tissue that promotes satiety.
A lesion to the ventromedial hypothalamus (VMH) leads to aphagia (loss of eating), because the VMH acts as the brain's primary hunger-activation center.
During periods of prolonged starvation, leptin levels rise significantly to preserve energy, while ghrelin levels drop to prevent the sensation of hunger.
Practise AQA A Level Psychology Neural and hormonal control of eating with exam-style questions for A Level Psychology. 8 questions, matched to the AQA A Level Psychology (7182) 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.
