Food Components — Previous Year Questions (Class 6 Science)
Explore carbohydrates, proteins, fats, vitamins, and minerals. Understand the nutritional foundation of a healthy diet.
TL;DR: Explore carbohydrates, proteins, fats, vitamins, and minerals. Understand the nutritional foundation of a healthy diet.
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Explore carbohydrates, proteins, fats, vitamins, and minerals. Understand the nutritional foundation of a healthy diet.
Food Components — Previous Year Questions with Solutions
Q (2023, 3 marks): Name the five components of food and give one example of a food rich in each.
Answer: The five components of food are:
1. Carbohydrates: Rice, wheat, sugar
2. Proteins: Eggs, dal, milk
3. Fats: Ghee, oil, nuts
4. Vitamins: Citrus fruits (vitamin C), carrots (vitamin A)
5. Minerals: Salt (sodium), milk (calcium)
Q (2022, 2 marks): What is the main function of proteins in our body?
Answer: Proteins are responsible for:
1. Building and repairing body tissues
2. Growth of muscles and bones
3. Making enzymes and hormones
4. Maintaining immunity
Q (2023, 3 marks): Give examples of foods that are sources of vitamin C and explain why vitamin C is important.
Answer: Sources of Vitamin C:
- Citrus fruits: Orange, lemon, guava
- Vegetables: Tomato, green chillies, capsicum
Importance of Vitamin C:
1. Boosts immunity
2. Helps heal wounds
3. Prevents scurvy disease
4. Acts as an antioxidant
Q (2022, 2 marks): What is the difference between macro-nutrients and micro-nutrients?
Answer: Macro-nutrients: Required in large quantities. Examples: Carbohydrates, proteins, fats.
Micro-nutrients: Required in small quantities. Examples: Vitamins and minerals.
Q (2023, 4 marks): A balanced diet should contain 45% carbohydrates, 30% proteins, 25% fats. If your daily diet is 2000 kcal, how many kcal should come from each component? (Assume 1g carbohydrate = 4 kcal, 1g protein = 4 kcal, 1g fat = 9 kcal)
Answer: Daily diet: 2000 kcal
Energy from carbohydrates: 45% of 2000 = 900 kcal
Energy from proteins: 30% of 2000 = 600 kcal
Energy from fats: 25% of 2000 = 500 kcal
Verification: 900 + 600 + 500 = 2000 kcal
Q (2022, 3 marks): Why is a balanced diet important for a growing child?
Answer: A balanced diet is important for growing children because:
1. Provides energy for daily activities and growth
2. Builds strong bones and muscles
3. Develops brain and nervous system
4. Strengthens immunity against diseases
5. Ensures proper physical and mental development
Frequently Asked Questions
What are empty calories?
Empty calories are calories from foods with little nutritional value, such as sugary drinks, candies, and processed snacks. They provide energy but lack vitamins, minerals, and other essential nutrients.
Can vegetables alone provide all nutrients we need?
No, vegetables cannot alone provide all nutrients. While vegetables are rich in vitamins and minerals, they lack sufficient protein and healthy fats. A truly balanced diet requires a variety of foods from all groups.
More Class 6 Science PYQs
- Chemical Reactions and Equations
- Light (Reflection and Refraction)
- Electricity
- Acids, Bases and Salts
- Metals and Non-metals
- Life Processes
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