N-Level Food and Nutrition

Question 1

What are the six main nutrients needed by the human body?

Accepted Answer

Carbohydrates, proteins, fats, vitamins, minerals, and water

Answer

The six main nutrients are carbohydrates (energy), proteins (growth/repair), fats (energy/insulation), vitamins (body functions), minerals (body functions), and water (essential for all bodily processes).

Question 2

Why is food hygiene important in Singapore's warm and humid climate?

Accepted Answer

Warm, humid conditions promote rapid bacterial growth on food, increasing the risk of food poisoning

Answer

Singapore's tropical climate (30-35°C, high humidity) provides ideal conditions for bacterial multiplication. Food left at ambient temperature can reach dangerous bacterial levels within hours.

Question 3

What is the 'danger zone' temperature range for bacterial growth in food?

Accepted Answer

5°C to 60°C

Answer

The temperature danger zone is 5°C to 60°C, where bacteria can multiply rapidly. Food should be kept below 5°C (refrigerated) or above 60°C (hot holding) to prevent bacterial growth.

Question 4

What is the function of protein in the diet?

Accepted Answer

Growth, repair of body tissues, production of enzymes and hormones, and immune system function

Answer

Proteins are essential for growth and repair of body tissues, making enzymes and hormones, producing antibodies for immunity, and providing energy when carbohydrate and fat are insufficient.

Question 5

What is the Health Promotion Board (HPB) 'My Healthy Plate' recommendation for Singapore?

Accepted Answer

Fill half the plate with fruits and vegetables, a quarter with whole grains, and a quarter with protein

Answer

HPB's 'My Healthy Plate' recommends filling half the plate with fruits and vegetables, a quarter with whole grains (e.g., brown rice), and a quarter with lean protein (meat, fish, tofu).

GCE N-Level Practice Test

GCE N-Level Practice Test

N-Level Food and Nutrition