The body provides energy for a person who has been running for half an hour, using blood sugar to generate high-energy fuel.
The glucose-fatty acid cycle
The glucose-fatty acid cycle explains the muscle tissue preference for fatty acids during moderate, long-term activity. In contrast, during high-intensity exercise, there is an increase in the availability and rate of glucose oxidation.
The production of reactive oxygen species (ROS) during muscle activity suggests that intracellular redox balance is important in the regulation of lipid/carbohydrate metabolism. ROS decrease Krebs cycle activity and increase mitochondrial uncoupling protein activity. The opposite effect is expected during moderate activity.
With this information, we can conclude that when the body is in physical activity for thirty minutes, it uses the glucose available in the blood as a source of energy.
Learn more about glucose oxidation in https://brainly.com/question/9625234
