Extra 30 short questions and answers from the CBSE Class 6 Science chapter:2 "Components of Food."

1. What are the major nutrients present in food?

✅ Answer: The major nutrients present in food are carbohydrates, proteins, fats, vitamins, and minerals. Water and roughage are also important components of food.

 

2. What is the function of carbohydrates in our body?

✅ Answer: Carbohydrates provide energy to our body. Foods like rice, wheat, and potatoes are rich sources of carbohydrates.

 

3. Name two food items rich in proteins.

✅ Answer: Pulses (dal) and eggs are rich in proteins.

 

4. Why are proteins called body-building foods?

✅ Answer: Proteins help in the growth and repair of body tissues, which is why they are called body-building foods.

 

5. What are fats, and why are they important?

✅ Answer: Fats are energy-giving nutrients that provide more energy than carbohydrates. They help keep the body warm and are stored for future energy needs.

 

6. Give two examples of foods rich in fats.

✅ Answer: Butter and nuts (like almonds and cashews) are rich sources of fats.

 

7. What are vitamins? Name any two types.

✅ Answer: Vitamins are essential nutrients that help in the proper functioning of the body. Two types are Vitamin A (good for eyesight) and Vitamin C (helps in healing wounds).

 

8. What is the function of Vitamin A in our body?

✅ Answer: Vitamin A is important for good eyesight and healthy skin. It is found in carrots, spinach, and papaya.

 

9. Name two food sources of Vitamin C.

✅ Answer: Oranges and lemons are rich sources of Vitamin C.

 

10. Which vitamin helps in blood clotting?

✅ Answer: Vitamin K helps in blood clotting and prevents excessive bleeding from wounds.

 

11. What are minerals? Give two examples.

✅ Answer: Minerals are essential nutrients needed in small amounts for various body functions. Examples include calcium (for strong bones) and iron (for making red blood cells).

 

12. What is the importance of calcium in our body?

✅ Answer: Calcium is important for strong bones and teeth. It is found in milk, cheese, and green leafy vegetables.

 

13. Why is iron important for our body?

✅ Answer: Iron helps in the formation of haemoglobin in red blood cells, which carries oxygen in the body. Deficiency of iron causes anaemia.

 

14. What is roughage? Give an example.

✅ Answer: Roughage, also known as dietary fibre, helps in digestion and prevents constipation. Example: Fruits and vegetables.

 

15. Why is water essential for our body?

✅ Answer: Water helps in digestion, absorption of nutrients, transport of substances, and removal of waste from the body.

 

16. What is a balanced diet?

✅ Answer: A balanced diet is a diet that contains all essential nutrients (carbohydrates, proteins, fats, vitamins, minerals, water, and fibre) in the right amounts.

 

17. What happens if a person does not get a balanced diet?

✅ Answer: If a person does not get a balanced diet, they may suffer from deficiency diseases due to the lack of essential nutrients.

 

18. What is malnutrition?

✅ Answer: Malnutrition is a condition that occurs due to an improper diet, either due to a lack of essential nutrients or excessive intake of unhealthy food.

 

19. Name two diseases caused by protein deficiency.

✅ Answer: Kwashiorkor and Marasmus are diseases caused by protein deficiency.

 

20. What is Kwashiorkor, and what are its symptoms?

✅ Answer: Kwashiorkor is a disease caused by protein deficiency. Symptoms include a swollen belly, thin limbs, and poor growth.

 

21. What is Marasmus, and what are its symptoms?

✅ Answer: Marasmus is caused by deficiency of proteins and carbohydrates. Symptoms include extreme thinness, weak muscles, and slow growth.

 

22. What is the deficiency disease caused by a lack of Vitamin A?

✅ Answer: Lack of Vitamin A causes night blindness, which leads to difficulty in seeing in dim light.

 

23. Which disease is caused by Vitamin D deficiency?

✅ Answer: Vitamin D deficiency causes rickets, which leads to weak and soft bones in children.

 

24. What is the deficiency disease caused by lack of iodine?

✅ Answer: Lack of iodine causes goitre, a disease that results in swelling of the neck.

 

25. Which disease is caused by a lack of Vitamin C?

✅ Answer: Lack of Vitamin C causes scurvy, which leads to bleeding gums and weakness.

 

26. Why should we eat fresh fruits and vegetables daily?

✅ Answer: Fresh fruits and vegetables provide essential vitamins, minerals, and fibre, which help in keeping our body healthy and preventing diseases.

 

27. How can we test for starch in a food item?

✅ Answer: Add iodine solution to the food item. If it turns blue-black, it indicates the presence of starch.

 

28. How can we test for proteins in a food item?

✅ Answer: Add a few drops of copper sulphate solution and sodium hydroxide solution to the food item. If it turns purple, it indicates the presence of proteins.

 

29. How can we test for fats in a food item?

✅ Answer: Rub the food item on a piece of paper. If the paper becomes translucent (oily), it indicates the presence of fats.

 

30. How can we prevent deficiency diseases?

✅ Answer: Deficiency diseases can be prevented by eating a balanced diet that includes all essential nutrients in the right amounts.