What is the function of insulin in the regulation of metabolism during the absorptive state?
A) It inhibits the insertion of glucose transporter type 4 into the plasma membranes of most body cells.
B) It inhibits the synthesis of triglycerides and proteins.
C) It inhibits the entry of glucose and amino acids into cells of many tissues.
D) It increases the activity of enzymes needed for anabolism.
E) It increases the activity of enzymes needed for catabolic or breakdown reactions.

Question

Quizplus · Accepted Answer

During the absorptive state, insulin stimulates the uptake and utilization of glucose by most tissues, and promotes anabolism or the synthesis of complex molecules from simpler ones. This is achieved by increasing the activity of enzymes involved in anabolic processes such as glycogen synthesis, protein synthesis, and lipogenesis. Insulin also inhibits or decreases the activity of enzymes involved in catabolic or breakdown reactions such as gluconeogenesis, glycogenolysis, and lipolysis. Therefore, insulin plays a critical role in maintaining glucose homeostasis and promoting tissue growth and repair during the absorptive state.

What Is the Function of Insulin in the Regulation of Metabolism