Chapter 21 Reading Guide — Metabolism Review Topic 3 Steps to the Metabolic Superhighway When the fuel in the body is full of the right nutrients, it will be released into the body. The sugar is transported throughout the body by glucose transporter 4 (GLUT-4), which is found in every cell that has blood. GLUT-4 transports glucose out of the cell. If the body’s fuel is not as full, this process does not happen, and the cell’s glucose remains. This triggers the process of autophagy, or self-destruction, in the cell. The cell then destroys its own useless, out-of-date parts, like the glycogen. A couple more enzymes (phosphorylase and glycogen phosphorylase) that are found in the cell break down glycogen for the cell’s use. In this way, the body gets rid of glucose when it is not needed and is stored when it is needed. The term “Superhighway” refers to this process, which is also called the anabolic pathway. Exercise is vital for the body to burn fat. One example of an exercise is walking for 30 minutes. As the body works harder, the metabolic rate increases. The more intense the exercise, the higher the metabolic rate. The greater the metabolic rate, the more fat is burned. As the body works harder, the muscle’s metabolic rate increases as well. Over a short period of time, working out can help burn fat. Diet, exercise, and the body can work together to enhance fat burning. The main goal of the metabolic pathway is to burn fat. The body’s insulin causes the cells to pull more glucose out of the blood into the cell. These cells do this until they have the fuel they need for energy. When the body does not get enough nutrients in the blood, it tells the body to start breaking down body fat to get more fuel. When the body does not get enough fuel, it will take the body’s fat and make glucose from it. These steps are crucial for the body to burn fat. Exercise helps burn fat. The metabolic pathway is how the body works to burn fat.
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Topic · Metabolism · Chapter 8 Quizlet review terms and concepts | Quizlet | Study.com: Study Topic: Metabolism Chapter 8 Quizlet review terms and concepts Category: Reading Guide Chapter 21 Reading Guide -
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