Summary: Food contains nutrients like carbohydrates, proteins, fats, vitamins, and minerals. These nutrients are essential for energy, growth, and protection from diseases.
NCERT Exercise Questions & Answers
Q1. Name the main nutrients in our food.
Carbohydrates, Proteins, Fats, Vitamins, and Minerals. Dietary fibre and water are also important.
Q2. Name the following:
(a) Energy-giving nutrients → Carbohydrates & Fats
(b) Body-building nutrients → Proteins
(c) Protective nutrients → Vitamins & Minerals
(d) Vitamin for eyes → Vitamin A
Q3. Name two foods rich in:
(a) Carbohydrates → Rice, Wheat
(b) Proteins → Pulses, Eggs
(c) Fats → Butter, Ghee
(d) Vitamins → Fruits, Vegetables
Q4. What is a balanced diet?
A diet that contains all nutrients in the right amount is called a balanced diet.
Q5. What are deficiency diseases?
Diseases caused due to lack of nutrients are called deficiency diseases.
Deficiency Diseases Table
| Nutrient |
Disease |
Symptoms |
| Vitamin A |
Night Blindness |
Poor vision at night |
| Vitamin B1 |
Beriberi |
Weak muscles |
| Vitamin C |
Scurvy |
Bleeding gums |
| Vitamin D |
Rickets |
Soft bones |
| Iron |
Anemia |
Weakness |