Diagramming Cell Communication Remember: SHAPE DETERMINES FUNCTION Insulin is a hormone that is produced by the pancreas. It circulates around the body in the blood and binds to receptor proteins in the cell membrane of cells to "unlock" them and allow sugar to enter the cell. In people with type 2 diabetes, the shape of the receptor protein in the cell membranes is changed due to poor diet. As a result, insulin is no longer the correct shape to bind, and sugar stays in the blood.   For this assignment, I would like you to make two hand written drawings: Show insulin correctly binding to a receptor protein in a normal person's cell membrane. Show insulin UNABLE to bind to a receptor protein in the cell membrane of a person with Type 2 diabetes. The receptor should be an INCORRECT SHAPE to match the insulin molecule.

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Cell Signaling

It allows cells to perform various cellular activities, coordinate, and interact with other cells. All cells of an organism receive signals from their environments and respond accordingly. Even the unicellular eukaryotes receive signals secreted by other cells and respond. In the case of yeast, mating takes place by signaling between the yeast cells. Communication by cell signaling in a multicellular organism has become a vast and important part of various fields of biology.