Binding of insulin to the insulin receptor leads to glucose uptake into the cell
The insulin receptor (blue) is a transmembrane protein, that is activated by insulin (orange). Insulin binding induces structural changes within the receptor which activates a signal cascade leading to the transport of glucose into the cell mediated by a glucose transporter protein
ID the Future Intelligent Design, Evolution, and Science Podcast

Glucose Systems in the Body — Another Instance of Irreducible Complexity

Howard Glicksman
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Dr. Howard Glicksman, author of an extended series at Evolution News on “The Designed Body,” is interviewed on a classic episode of ID the Future by Ray Bohlin on glucose, glycogen, glucogon, insulin — all part of an extended multi-step series essential for life — an irreducibly complex series.

“If students only knew how life worked,” says Dr. Glicksman,” … they’d quickly come to realize that when it comes to figuring out where it all came from, common sense tells us it was intelligent design, and it’s the Darwinists who are suffering from an illusion.”