Lesson 2 - Healthy Diets

Question 1

What are the seven nutrients needed by the human body?

Answer 1

Carbohydrates
Proteins
Fats
Vitamins
Minerals
Water
Fibre

Question 2

What is the function of carbohydrates in the body?

Answer 2

Carbohydrates provide energy for the body to perform activities and maintain functions like breathing and movement.

Question 3

Why are proteins important for the body?

Answer 3

Proteins are needed for growth, repair of tissues, and building muscles.

Question 4

What is the role of fats in the body?

Answer 4

Fats provide a long-term energy store, help insulate the body, and protect vital organs.

Question 5

What do vitamins and minerals do for the body?

Answer 5

Vitamins and minerals are essential for maintaining good health.

Vitamins help with processes like vision, skin health, and the immune system.
Minerals are needed for strong bones (e.g., calcium) and transporting oxygen in the blood (e.g., iron).

Question 6

What is the importance of water and fibre in the diet?

Answer 6

Water is essential for hydration, regulating body temperature, and transporting nutrients.
Fibre helps keep the digestive system healthy and prevents constipation.

Question 7

What is a deficiency disease?

Answer 7

A deficiency disease occurs when the body does not get enough of a particular nutrient, leading to health problems.

Question 8

What deficiency disease is caused by a lack of vitamin C?

Answer 8

Scurvy. It causes symptoms like bleeding gums, joint pain, and tiredness.

Question 9

What happens if the body doesn’t get enough iron?

Answer 9

A lack of iron can lead to anemia, which causes fatigue, pale skin, and dizziness due to a lack of oxygen in the blood.

Question 10

What disease is caused by a lack of vitamin D or calcium?

Answer 10

Rickets in children. It weakens bones, causing pain and deformities like bowed legs.