Important Questions for Class 6 Science - Components of Food

Very Short Answer Type Questions

Q1: What is the definition of nutrients?
Ans: A nutrient is a substance our bodies need to stay healthy and grow. Nutrients give us energy, help us build and repair our muscles, and support our overall health. 

Q2: Name two important nutrients found in food that mainly provide energy.
Ans: Carbohydrates and fats.

Q3: How can you test for the presence of starch in food?
Ans: By using an iodine solution; a blue-black color indicates the presence of starch.

Q4: What is the primary role of proteins in our body?
Ans: Proteins provide chemical material for the growth and repair of body cells and tissues.

Q5: What are the sources of vitamin D?
Ans: Some sources of Vitamin D include sunlight, egg, liver, fish, milk, and butter. 

Q6: Why is it important to have a balanced diet?
Ans: A balanced diet provides all the necessary nutrients in proper proportions for maintaining good health.

Q7: What do dietary fibers/roughage do in our body?
Ans: Dietary fibers help in the easy absorption of food, promote bowel movement, and prevent constipation.

Short Answer Type Questions

Q8: Explain the test for starch in food in detail.
Ans: To test for starch in food, take a small quantity of the food item, add 2-3 drops of iodine solution, and observe the resulting color change.

Q9: Describe the role of carbohydrates in our body.
Ans: Carbohydrates are compounds that provide instant energy when oxidized in the body. They are mainly present in foods like rice, potatoes, and bananas.

Q10: What is the importance of vitamin D in the body?
Ans: Vitamin D helps our body to use calcium for bones and teeth.

Q11: Explain the significance of vitamins in maintaining a healthy body.
Ans: Vitamins play a crucial role in maintaining good health. For instance, vitamin A promotes growth and vision, while vitamin C helps fight diseases like the common cold.

Long Answer Type Questions

Q12: Discuss the concept of a balanced diet and why it is essential for our health.
Ans: A balanced diet contains all necessary nutrients in proper proportions, including carbohydrates, proteins, fats, vitamins, minerals, and water. It is vital for maintaining good health as it provides the body with the required energy and materials for growth, repair, and daily activities.

Q13: Explain the term "deficiency diseases" and provide examples.
Ans: Deficiency diseases occur due to a lack of one or more nutrients in the diet over a prolonged period. Examples include anemia (lack of iron), goiter (lack of iodine), beriberi (lack of vitamin B1), and scurvy (lack of vitamin C).

Q14: How can we prevent deficiency diseases through dietary choices?
Ans: Deficiency diseases can be prevented by including a variety of nutrient-rich foods in the diet. For example, consuming iron-rich foods like apples, green leaves and fish can prevent anemia, and using iodized salt can prevent goiter due to iodine deficiency.

Q15: Explain the role of water in our diet and its significance for our body.
Ans: Water is essential for the body to get rid of wastes, absorb nutrients, and maintain overall health. It helps in digestion, circulation, and temperature regulation, among other functions. Drinking an adequate amount of water is crucial for our well-being.