Blood Glucose Regulation and Energy Systems Quiz

What is the primary role of insulin in blood glucose regulation?

• To stimulate fat storage

• To signal cells to take up glucose

• To promote glycogen breakdown

• To increase blood glucose levels

What happens to blood glucose levels after insulin is released?

• They fluctuate wildly

• They decrease as glucose is taken up by cells

• They remain unchanged

• They increase significantly

What is the function of glucagon in glucose regulation?

• To enhance insulin sensitivity

• To stimulate glycogenolysis in the liver

• To promote glucose uptake by cells

• To lower blood glucose levels

How does exercise affect glucose uptake in muscles?

• It has no effect on glucose uptake

• It promotes insulin-independent glucose uptake

• It stimulates insulin release

• It decreases glucose uptake

What is the primary energy source for muscle contraction during exercise?

• Glucose

• Amino acids

• Lactate

• Fatty acids

What should an elite marathon runner do to prepare for a race?

• Increase protein intake

• Reduce fluid intake

• Avoid carbohydrates

• Consume a carbohydrate-rich diet

What is the role of GLUT4 transporters?

• To transport glucose into cells

• To release glucose into the bloodstream

• To break down glycogen

• To synthesize triglycerides

What effect does high-intensity exercise have on glucose uptake?

• It decreases glucose uptake

• It has no effect on glucose uptake

• It induces greater glucose uptake

• It only affects fat metabolism

What is the consequence of prolonged or intense exercise on glycogen?

• Decreased reliance on blood glucose

• No effect on glycogen levels

• Glycogen depletion

• Increased glycogen storage

How does regular exercise impact insulin sensitivity?

• It decreases insulin sensitivity

• It has no effect

• It only affects glucose tolerance

• It enhances insulin sensitivity