Understanding Blood Glucose Regulation

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

• It has no role in blood glucose regulation.

• It increases blood glucose levels.

• It decreases blood glucose levels by facilitating glucose uptake into cells.

• It breaks down glycogen into glucose.

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What happens to blood glucose levels after consuming a meal high in carbohydrates?

• They fluctuate unpredictably.

• They remain constant.

• They increase due to absorption of glucose into the bloodstream.

• They decrease significantly.

Which organ detects changes in blood glucose levels and releases hormones to regulate it?

• Heart

• Stomach

• Pancreas

• Liver

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What is glycogen?

• A type of cell that absorbs glucose.

• A hormone that decreases blood glucose levels.

• A hormone that increases blood glucose levels.

• A large molecule made up of glucose molecules, serving as long-term glucose storage.

What role does glucagon play in blood glucose regulation?

• It increases blood glucose levels by promoting the breakdown of glycogen into glucose.

• It has no significant role.

• It directly converts glucose into glycogen.

• It decreases blood glucose levels.

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How do liver and muscle cells contribute to lowering blood glucose levels?

• By releasing insulin.

• By secreting glucagon.

• By taking up glucose and converting it into glycogen.

• By breaking down glucose into carbon dioxide and water.

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What is the main difference between insulin and glucagon?

• Insulin decreases blood glucose levels, while glucagon increases them.

• Insulin increases blood glucose levels, while glucagon decreases them.

• There is no significant difference; they perform the same function.

• Insulin breaks down glycogen, while glucagon builds it up.

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What triggers the pancreas to release insulin?

• An increase in blood glucose levels.

• Physical exercise.

• The consumption of proteins.

• A decrease in blood glucose levels.

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What is the result of glucagon binding to liver cells?

• It decreases the liver's glucose production.

• It promotes the uptake of glucose from the blood.

• It stimulates the conversion of glucose to glycogen.

• It triggers the breakdown of glycogen into glucose, increasing blood glucose levels.

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How do insulin and glucagon work together to regulate blood glucose levels?

• They do not work together; each functions in opposition to the other.

• By creating a positive feedback loop that keeps glucose levels constantly high.

• By independently altering glucose levels without affecting each other.

• By creating a negative feedback loop to maintain glucose levels within a normal range.

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