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What is the role of glucagon in glucose metabolism?

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Question: What is the role of glucagon in glucose metabolism?

Options:

  1. Increases glycogen synthesis
  2. Stimulates gluconeogenesis
  3. Inhibits lipolysis
  4. Decreases blood glucose levels

Correct Answer: Stimulates gluconeogenesis

Solution: 

Glucagon is produced by the alpha cells of the pancreas and increases blood glucose levels by stimulating gluconeogenesis and glycogenolysis in the liver.

What is the role of glucagon in glucose metabolism?

Practice Questions

Q1
What is the role of glucagon in glucose metabolism?
  1. Increases glycogen synthesis
  2. Stimulates gluconeogenesis
  3. Inhibits lipolysis
  4. Decreases blood glucose levels

Questions & Step-by-Step Solutions

What is the role of glucagon in glucose metabolism?
  • Step 1: Understand that glucagon is a hormone made by the pancreas.
  • Step 2: Know that glucagon is produced by special cells called alpha cells.
  • Step 3: Learn that the main job of glucagon is to raise blood sugar levels.
  • Step 4: Recognize that glucagon does this by two main processes: gluconeogenesis and glycogenolysis.
  • Step 5: Understand gluconeogenesis as the process of making new glucose from non-carbohydrate sources in the liver.
  • Step 6: Understand glycogenolysis as the process of breaking down glycogen (stored glucose) into glucose in the liver.
  • Step 7: Conclude that when glucagon is released, it helps to ensure that your body has enough glucose in the blood for energy.
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