Summary: In this chapter, we learned that our food contains nutrients such as carbohydrates, proteins, fats, vitamins, and minerals. Dietary fibre and water are also essential components of our diet.
NCERT Exercise Questions & Answers
Q1. Name the main nutrients in our food.
Carbohydrates, Proteins, Fats, Vitamins, and Minerals.
Also, dietary fibre and water are important.
Q2. Name the following:
(a) Nutrients that mainly give energy → Carbohydrates & Fats
(b) Nutrients for growth and maintenance → Proteins & Minerals
(c) Vitamin for good eyesight → Vitamin A
(d) Mineral for bones → Calcium
Q3. Name two foods rich in:
(a) Fats → Ghee, Butter
(b) Starch → Rice, Potato
(c) Dietary fibre → Fruits, Vegetables
(d) Protein → Pulses, Eggs
Q4. Tick the correct statements:
(a) Only rice is enough → ❌
(b) Balanced diet prevents diseases → ✓
(c) Balanced diet needs variety → ✓
(d) Only meat is enough → ❌
Q5. Fill in the blanks:
(a) Rickets is caused by lack of Vitamin D
(b) Beriberi is caused by lack of Vitamin B1
(c) Scurvy is caused by lack of Vitamin C
(d) Night blindness is caused by lack of Vitamin A
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 |
| Calcium |
Weak bones |
Bone weakness |
| Iron |
Anemia |
Weakness |