Lecture 9 and 10
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Questions and Answers

What is the main function of Glut 1 at the blood-brain barrier?

  • It allows glucose to enter brain without insulin (correct)
  • It pumps glucose into the brain at a steady rate
  • It increases glucose uptake into the brain during low glycemia
  • It helps to store excess glucose in the brain

What effect does hypoglycemia (2mmol/l) have on brain function?

  • It impairs brain function (correct)
  • It improves brain function due to increased glucose availability
  • It leads to temporary memory enhancement
  • It has no effect on brain function

What is the relationship between glucagon and insulin?

  • Glucagon decreases glucose uptake by the brain
  • Insulin and glucagon have no effect on each other
  • They both increase hepatic and renal glucose production
  • Insulin secretion suppresses glucagon secretion (correct)

In Type 1 Diabetes, what happens if more insulin is taken than carbs consumed?

<p>Hypoglycemia occurs (C)</p> Signup and view all the answers

Why are sugar sweetened beverages referred to as 'empty calories'?

<p>They have poor nutrient content but high sugar content (C)</p> Signup and view all the answers

How can reducing dietary sugar consumption help with obesity?

<p>It helps reduce calorie intake without essential nutrients (C)</p> Signup and view all the answers

What is the recommended maximum percentage of total daily energy intake for sugar?

<p>10% (B)</p> Signup and view all the answers

Which of the following is true about Glycemic Index (GI)?

<p>GI measures the amount of sugar in a food item (D)</p> Signup and view all the answers

What is the relationship between Glycemic Index (GI) and Glycemic Load (GL)?

<p>Eating a piece of bread results in a low GL but high GI (D)</p> Signup and view all the answers

How can dietary planning based on Glycemic Index (GI) and Glycemic Load (GL) be beneficial?

<p>It helps in preventing obesity and managing diabetes (C)</p> Signup and view all the answers

What are the two types of dietary fiber mentioned in the text?

<p>Insoluble and soluble fiber (D)</p> Signup and view all the answers

How does fiber affect nutrient digestion and absorption?

<p>It decreases mixing of GI content with digestive enzymes (A)</p> Signup and view all the answers

What is the main function of Short Chain Fatty Acids (SCFAs) in the GI tract?

<p>They provide energy for colonic cells (D)</p> Signup and view all the answers

What is the main effect of insoluble fibers mentioned in the text?

<p>They increase fecal volume and exert detoxifying effect (C)</p> Signup and view all the answers

What is the recommended daily intake for fiber according to WHO?

<p>25g to 40g (D)</p> Signup and view all the answers

How does dietary fiber impact nutrient diffusion?

<p>It decreases nutrient diffusion (B)</p> Signup and view all the answers

What are the sources of soluble fiber mentioned in the text?

<p>Pectin, gums, mucilage's, fruits, legumes, oats, vegetables (A)</p> Signup and view all the answers

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