Type 1 diabetes is caused by destruction of beta cells in the pancreas that produce insulin. Which of the following best explains how insulin injections affect signal transduction in an individual with type 1 diabetes? They allow alternate signaling transduction pathways to control glucose levels.
They open channels to allow signaling molecules to enter pancreatic cells.
They provide a signaling molecule to begin the signal transduction pathway.
They serve as second messengers to regulate glucose uptake by cells.