Lecture 9 and 10

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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?

Hypoglycemia occurs Signup and view all the answers

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

They have poor nutrient content but high sugar content Signup and view all the answers

How can reducing dietary sugar consumption help with obesity?

It helps reduce calorie intake without essential nutrients Signup and view all the answers

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

10% Signup and view all the answers

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

GI measures the amount of sugar in a food item Signup and view all the answers

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

Eating a piece of bread results in a low GL but high GI Signup and view all the answers

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

It helps in preventing obesity and managing diabetes Signup and view all the answers

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

Insoluble and soluble fiber Signup and view all the answers

How does fiber affect nutrient digestion and absorption?

It decreases mixing of GI content with digestive enzymes Signup and view all the answers

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

They provide energy for colonic cells Signup and view all the answers

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

They increase fecal volume and exert detoxifying effect Signup and view all the answers

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

25g to 40g Signup and view all the answers

How does dietary fiber impact nutrient diffusion?

It decreases nutrient diffusion Signup and view all the answers

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

Pectin, gums, mucilage's, fruits, legumes, oats, vegetables Signup and view all the answers

Lecture 9 and 10

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