Question

Write the role of insulin in regulating blood sugar levels in human body. Mention the disease caused due to it.

How is the timing and the amount of release of insulin in the blood regulated?

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?

Sapna suffers from a condition due to which her average blood sugar level is 174 mg/dL. The average blood sugar level in a healthy adult is <140 mg/dL. Which of the following could be the cause of Sapna's condition?