Which event occurs during exercise but NOT during fasting?

Question

Quizplus · Accepted Answer

During exercise, muscles need more energy and therefore uptake more glucose from the bloodstream. However, during fasting, glucose uptake by muscle is decreased in order to spare it for use by the brain and other essential organs.

Answer: B 
 During exercise, glycogen stored in the muscles and liver is broken down to glucose which can be used as fuel for energy. However, during fasting, glycogenolysis may occur initially but is eventually replaced by gluconeogenesis as the primary source of glucose production.

Answer: A and D 
 Both increased breakdown of triglycerides and increased fatty acid oxidation occur during exercise and fasting as the body uses stored fat as an energy source.

Answer: E 
 Cortisol secretion may increase during fasting as a stress response, but it may not necessarily increase during exercise unless it is intense or prolonged.

Which Event Occurs During Exercise but NOT During Fasting