Doc #3b Blood Sugar Homeostasis

EAT SUGAR

Introduce a high amount of sugar in blood

Introduce a low amount of sugar in blood Pancreas is

triggered to release a high amount of insulin

Pancreas is triggered to release a low amount of insulin

Too much insulin released into blood leads to extreme low blood sugar triggers response in liver

Glucose is reintroduced into the blood stream

Cells can’t use al l that energy at once, it is stored as fat

Insulin helps sugar enter the cells to be used for energy

1). A gland detects a change in the environment.

2) A gland secretes hormones.

3) Hormones travel through the bloodstream.

4) Hormones bind to receptors.

5) A cell responds and changes after hormones bind to its receptors.

Doc #3a The Endocrine System

6) The gland detects changes that target cells produce in the body. This feedback will cause the cell to decrease secretion of hormones. This is an example of negative feedback.