Carbohydrates

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Questions and Answers

What is the major macronutrient in most human diets?

  • Carbohydrates (correct)
  • Vitamins
  • Fats
  • Proteins

What is used to absorb glucose into enterocytes?

  • Free energy of the calcium gradient
  • Free energy of the magnesium gradient
  • Free energy of the sodium gradient (correct)
  • Free energy of the potassium gradient

What does the glycemic index measure?

  • The effect of ingesting a standard amount of fiber on blood glucose
  • The effect of ingesting a standard amount of carbohydrate on blood glucose (correct)
  • The effect of ingesting a standard amount of protein on blood glucose
  • The effect of ingesting a standard amount of fat on blood glucose

What benefits have been associated with low GI/GL diets?

<p>Improved blood glucose control (D)</p> Signup and view all the answers

What does the glucose tolerance test measure?

<p>The response to a carbohydrate load (D)</p> Signup and view all the answers

What can hyperglycemia cause?

<p>Non-enzymatic glycation of proteins, leading to AGE accumulation (A)</p> Signup and view all the answers

What does glycated hemoglobin give a good indication of?

<p>Average blood glucose in a patient (D)</p> Signup and view all the answers

What causes Type I diabetes mellitus?

<p>Autoimmune destruction of the pancreatic β cells (B)</p> Signup and view all the answers

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Study Notes

  • Carbohydrates are the major macronutrient in most human diets.
  • Glucose is absorbed into enterocytes using the free energy of the sodium gradient.
  • Glycaemic index measures the effect of ingesting a standard amount of carbohydrate on blood glucose.
  • Low GI/GL diets have been associated with several benefits.
  • Glucose tolerance test measures the response to a glucose load.
  • Hyperglycaemia can cause non-enzymatic glycation of proteins, leading to AGE accumulation.
  • Glycated haemoglobin gives a good indication of average glycaemia in a patient.
  • Type I diabetes mellitus is caused by autoimmune destruction of the pancreatic β cells.
  • Type II diabetes mellitus is caused by a combination of insulin resistance and impaired insulin secretion.
  • In the fed state, glucose uptake by many tissues.

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