Janelle never has time to eat between work and her evening nutrition class. It has been 7 hours since lunch and she is feeling hungry and weak. From where is she getting glucose to meet her energy needs?

Question

Quizplus · Accepted Answer

The liver stores glycogen which can be broken down into glucose and released into the bloodstream to be used for energy. This is the most likely source of glucose for Janelle's energy needs after 7 hours of not eating. Glucose from muscle protein would only be used in extreme circumstances when no other source of energy is available. Glucose is the primary fuel for the brain, but the liver would provide this glucose. Stored fat would not be converted into glucose to provide energy, but rather into ketones to be used by the body's cells for energy.

Janelle Never Has Time to Eat Between Work and Her