QUESTION 1: In the fasted state, which hormone is the most likely to be exerting the strongest effect?
- GLUT 4
- Glucagon
- Insulin
- Testosterone
QUESTION 2: In the fasted state of which of the following processes is/are working to maintain plasma glucose concentration?
- Glycolysis
- Glycogenolysis
- Gluconeogenesis
- Lipolysis
- Glycogenesis
QUESTION 3: Which of the following statement/s about glucose homeostasis is/are correct?
- In the fed state, GLUT 2 transporters are inserted into the cell membrane of skeletal muscle cells via endocytosis.
- In the fasted state, glucose moves into the plasma from hepatocytes because there is a higher glucose concentration in hepatocytes duye to gluconeogenesis.
- When plasma glucose concentration gets low, fatty acids are oxidised to form ketones to provide the brain with energy.
- Glucagon increases cells to increase glucose uptake, thus lowering plasma glucose concentration after a meal.
QUESTION 4: Which of the following statements about exercise are correct?
- During high intensity exercise, there is an increase in fat oxidation as this system has the highest capacity.
- During prolonged exercise, increased catecholamine release directly causes a decrease in lipolysis.
- During a bout of sprint exercise, there is a large reliance on phosphocreatine because this is a powerful energy system that can generate ATP at a fast rate.
- Free fatty acids from adipose tissue do not appear in the blood stream at the same rate as they are broken down during a prolonged bout of exercise due to blood flow being redirected from adipose tissue.
- During prolonged exercise, there is a decrease in GLUT4 translocation to skeletal muscle cell membrane as the sympathetic nervous system is stimulated.