Question

Why do insulin and glucagon have the ability to maintain homeostasis in the body via blood glucose levels? When do these hormones become present?  What tissues generate a response to these hormones and what is their response?

Answer 1

Insulin and glucagon hormone maintain homeostasis in body by regulating blood glucose level.

When we are fasting and during physical exercise glucagon hormone get released in body and start breakdown of glycogen into glucose to maintain blood glucose level and when we are eating then insulin hormone realease to lower down the glucose level in our blood which is taken from diet.

Both hormones are antagonist hormone means works opposite to each other.

Both hormones are released by islet cells of pancreas. Insulin is secreted by beta islet cells and glucagon is secreted by beta islet cells.