Carbohydrates Quiz
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Questions and Answers

Which amino acids can be converted to pyruvate or an intermediate in the citric cycle, and then to glucose?

  • Glycine
  • Alanine (correct)
  • Leucine
  • Lysine
  • During fasting or carbohydrate limiting conditions, what happens to oxaloacetate in the liver?

  • It is converted to ketone bodies
  • It is used for glycogen synthesis
  • It accumulates due to decreased gluconeogenesis
  • It is depleted due to its use in gluconeogenesis (correct)
  • What is the main form of carbohydrate storage in animals?

  • Glycogen (correct)
  • Starch
  • Cellulose
  • Fructose
  • Which hormone stimulates glycogen production?

    <p>Insulin</p> Signup and view all the answers

    What inhibits glycogen production?

    <p>Epinephrine</p> Signup and view all the answers

    Which hormone stimulates glycogenolysis?

    <p>Glucagon</p> Signup and view all the answers

    What inhibits glycogenolysis?

    <p>Insulin</p> Signup and view all the answers

    What are the normal fasting glucose levels?

    <p>70-99 mg/dL</p> Signup and view all the answers

    What fasting glucose level range indicates pre-diabetes?

    <p>100-124 mg/dL</p> Signup and view all the answers

    What is the main treatment for Type 1 diabetes?

    <p>Insulin, monitoring food intake, and exercise</p> Signup and view all the answers

    What metabolic state is associated with high concentrations of ketone bodies?

    <p>Ketoacidosis</p> Signup and view all the answers

    In Type 2 diabetes, what do target tissues fail to do appropriately?

    <p>Respond to insulin</p> Signup and view all the answers

    What is the primary function of ketone bodies?

    <p>Used as an energy source when glucose is limited</p> Signup and view all the answers

    Which metabolic pathway results in the generation of glucose from non-carbohydrate substrates?

    <p>Gluconeogenesis</p> Signup and view all the answers

    What is the main source of glucose during gluconeogenesis?

    <p>Amino acids from protein breakdown</p> Signup and view all the answers

    What happens when glucose is limited in the body?

    <p>Amino acids can be used to make glucose</p> Signup and view all the answers

    Where does gluconeogenesis primarily occur?

    <p>Liver and kidney</p> Signup and view all the answers

    What is the consequence of limited fluid intake and high ketone production?

    <p>Ketosis</p> Signup and view all the answers

    In what form are excess ketone bodies eliminated from the body?

    <p>Through urine</p> Signup and view all the answers

    What happens to acetyl CoA when oxaloacetate is limited?

    <p>Converted into ketone bodies</p> Signup and view all the answers

    What is the energy status of the process of gluconeogenesis?

    <p>Energy requiring process</p> Signup and view all the answers

    Which organs can use ketone bodies as an energy source?

    <p>Heart, muscle, kidney, and brain</p> Signup and view all the answers

    What is the fate of excess ketone bodies when fluid intake is low?

    <p>Excreted by urine</p> Signup and view all the answers

    How are fatty acids utilized when glucose is limited?

    <p>Converted into ketone bodies</p> Signup and view all the answers

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