Nutrition and health：練習問題

Which of the following is considered an essential component of a healthy lifestyle for maintaining overall well-being?

A nutrition label for a pack of biscuits states that there are \( 44 \text{ g} \) of carbohydrates per \( 100 \text{ g} \) of the product. If one serving size is \( 25 \text{ g} \), how many grams of carbohydrates are in one serving?

In the human digestive system, chemical digestion requires specific conditions for enzymes to function optimally. Which of the following correctly matches the location, the enzyme type found in the digestive juice secreted there, and the primary food substance it acts upon?

Which of the following describes the most balanced breakfast for a junior secondary student according to healthy lifestyle principles?

In the human digestive system, food is transformed into simpler, soluble substances before being utilized by the body. Which of the following statements correctly describes the role of bile in this process?

State three factors mentioned in the curriculum that determine the daily energy requirement of an individual.

Describe the procedure used to compare the vitamin C content of two fruit juices using the chemical indicator DCPIP, and explain how to determine which sample is more concentrated.

Explain two specific mechanisms by which regular physical activity contributes to reducing the risk of developing Type 2 Diabetes.

A balanced diet and healthy lifestyle are essential for the maintenance of a healthy body. Imagine a middle-aged office worker who frequently skips breakfast, consumes fast food for lunch (high in fats and salt), and has a sedentary job with very little physical activity.

(a) Define what is meant by a balanced diet and explain why it is important for this individual to include dietary fibre in their daily meals. (2 points)

(b) Identify one specific non-infectious disease that this individual is at an increased risk of developing due to their high intake of lipids (fats) and state one way they could modify their lifestyle to reduce this risk. (2 points)

The human body needs various food substances for energy, growth, and repair. These can be grouped based on their roles.

(a) Name three main types of food substances that primarily provide energy to the body.

(b) Besides providing energy, state one specific function for proteins and one for vitamins in the human body.

(c) Explain why it is important to consume a 'balanced diet' rather than focusing on just one type of food substance.