Question

In human beings, hormonal action is largely controlled by a mechanism where the secretion of one hormone is regulated by the action of another. An example of blood glucose levels control is shown in the diagram below. (a) What is the mechanism of hormone action known as? (b) Which is the sensor X that helps in detecting blood glucose level? (c) What would happen if such mechanism is absent in humans?

Hormones in Animals are secreted in specific quantities by glands in the body. The secretion of these hormones is also regulated by the body. (a) The table below gives the normal reading of blood glucose levels before and after eating. Before eating: 80-100; After eating: 170-200 Ram's blood glucose level is 275. Name the hormone that would be released to regulate the blood glucose level. (b) Explain the regulation of the hormone named in answer (a) in TWO points.