In response to low blood glucose levels, the pancreas produces the hormone glucagon. Glucagon functions by binding to molecules on the surface of liver cells, causing changes in cellular activity that lead to the release of glucose into the blood. The proteins to which glucagon binds are ____.​

A) ​antibodies
B) ​transport proteins
C) ​receptor proteins
D) ​enzymes
E) ​adhesion proteins

Glucagon

Pancreatic hormone that encourages glycogen breakdown; increases blood glucose level.

Receptor Proteins

Proteins located on the surface or inside of cells that bind to specific molecules like hormones or neurotransmitters, triggering a specific cellular response.

Liver Cells

Also known as hepatocytes, these are the main cell type found in the liver, responsible for protein synthesis, detoxification, and metabolism of carbohydrates, fats, and proteins.