Nutritive value of food：练习题

What is the primary function of carbohydrates in the human body?

Which of these carbohydrates is classified as a disaccharide and is commonly found in milk?

The following data shows the Non-Starch Polysaccharide (NSP) content per \(100\) g of different foods:
- White rice: \(0.2\) g
- Boiled potatoes: \(1.2\) g
- Lentils: \(3.7\) g
- Bran flakes: \(12.8\) g

Which food would be most effective at increasing faecal bulk to prevent constipation?

Which of the following is considered the best dietary source of Vitamin C (ascorbic acid)?

What is the primary function of non-starch polysaccharide (NSP), also known as dietary fibre, in the diet?

State two distinct physiological functions of Vitamin A (retinol) in the human body.

Explain the difference between saturated and polyunsaturated fats, providing one specific food example for each category.

Explain the specific role of thiamin (Vitamin B1) in energy metabolism and describe the symptoms of the deficiency disease associated with a lack of this vitamin.

(a) State three essential functions of water in the human body.
(b) Identify two ways, other than drinking plain water, that an individual can maintain adequate hydration levels throughout the day.

(a) Name two fat-soluble vitamins and describe one specific health benefit or function for each in the body.
(b) Explain the nutritional importance of consuming dietary fat in relation to the absorption of these vitamins.