When blood glucose levels drop below normal, hormones signal the breakdown of ________, which releases glucose into the blood.
A) stored fat
B) liver glycogen
C) amino acids from muscle
D) ketones

Question

Quizplus · Accepted Answer

When blood glucose levels drop below normal, hormones such as glucagon and epinephrine signal the liver to break down glycogen into glucose, which is then released into the bloodstream to increase blood glucose levels. Stored fat and amino acids from muscles can also be broken down to provide energy during times of low blood glucose levels, but glycogen breakdown is the first and most immediate response. Ketones are produced during prolonged fasting or in untreated type 1 diabetes, but they are not a primary source of glucose during normal blood glucose regulation.

When Blood Glucose Levels Drop Below Normal, Hormones Signal the Breakdown