Extra Questions and mcqs on Components of Food Class 6 Science - Components of Food

Extra Questions

Q1. What is a deficiency disease?

• Deficiency diseases occur when the body lacks one or more essential nutrients.
• Common nutrients whose deficiencies cause diseases include vitamins, minerals, and proteins.
• Examples of deficiency diseases:
  • Scurvy - lack of Vitamin C
  • Rickets - lack of Vitamin D
  • Anemia - lack of iron

Deficiency Diseases

Q2. Why is goitre caused?

• Goitre is caused due to a deficiency of iodine.
• Iodine is needed for the thyroid gland to function properly.
• Without enough iodine, the thyroid gland enlarges, causing a visible swelling in the neck known as goitre.

Goitre

Q3. Name rich sources of vitamin A.

• Carrots: High in beta-carotene, which converts to Vitamin A in the body.
• Spinach: Provides Vitamin A along with other nutrients like iron and fiber.
• Other sources: Mangoes, sweet potatoes, and pumpkin.

Q4. What is balanced diet?

• A balanced diet includes all essential nutrients—carbohydrates, proteins, fats, vitamins, and minerals—in proper proportions.
• It supports overall health, growth, and provides energy for daily activities.
• A balanced diet prevents deficiency diseases and keeps the immune system strong.

Balanced Diet

Q5. What are energy giving foods?

• Carbohydrates: Main source of energy found in foods like rice, bread, and pasta.
• Fats: Also provide energy and are found in nuts, oils, and dairy products.
• Both are essential to keep the body active and provide fuel for physical activities.

Q6. What are body building foods?

• Body-building foods are rich in protein, essential for growth and muscle strength.
• Sources include:
  • Dairy products: Milk, cheese, and yogurt.
  • Legumes: Beans, lentils, and chickpeas.
  • Animal products: Meat, fish, and eggs.

Importance of Protein

Q7. What are the sources of carbohydrates?

Carbohydrates are important for providing energy and are found in:

• Grains: Such as rice, wheat, and maize (corn).
• Starchy vegetables: Like potatoes and sweet potatoes.
• Sugars: Natural sugars in fruits and added sugars in foods.

Q8. Name the disease caused by the deficiency of iron?

• The deficiency of iron leads to anemia.
• Iron is essential for producing hemoglobin, which carries oxygen in the blood.
• Symptoms of anemia include tiredness, weakness, and shortness of breath.

Q9. Why is Vitamin C important for our body?

• Vitamin C is essential for the growth and repair of tissues in our body.
• It helps in healing wounds and maintaining healthy skin.
• Vitamin C also strengthens the immune system to fight against infections.
• Rich sources of Vitamin C: Citrus fruits like oranges, lemons, and also strawberries, bell peppers, and broccoli.

Q10. What is the role of calcium in our body?

• Calcium is important for building and maintaining strong bones and teeth.
• It helps in the proper functioning of muscles and nerves.
• Calcium also aids in blood clotting and maintaining a normal heartbeat.
• Rich sources of calcium: Milk, cheese, yogurt, leafy green vegetables, and almonds.

Q11. What is the function of dietary fiber in our diet?

• Dietary fiber helps to maintain a healthy digestive system.
• It prevents constipation by adding bulk to the stool.
• Fiber also helps to control blood sugar levels and maintain a healthy weight.
• Rich sources of dietary fiber: Whole grains, fruits like apples and bananas, vegetables, and legumes such as beans and lentils.

Multiple Choice Questions

Q1. Which of the following are essential for body growth and the formation of new cells?
(a) Carbohydrates
(b) Protein
(c) Minerals
(d) Vitamins

Correct answer is Option (b) Protein.

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Q2. The indigestible material in food is known as
(a) Roughage
(b) Minerals
(c) Vitamins
(d) Fats

Correct answer is Option (a) Roughage.

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Q3. The component of food which is the major energy supplier is
(a) Cellulose
(b) Protein
(c) Carbohydrate
(d) Amino acid

Correct answer is Option (c) Carbohydrate.

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Q4. Protein is made up of which molecule?
(a) Lipid
(b) Carbon and oxygen
(c) Amino acid
(d) Oxygen and hydrogen

Correct answer is Option (c) Amino acid.

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Q5. Scurvy is caused by deficiency of which of these?
(a) Vitamin A
(b) Vitamin D
(c) Vitamin 
(d) Vitamin C

Correct answer is Option (d) Vitamin C.

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Q6. Rickets is caused by deficiency of which of these?
(a) Vitamin D
(b) Vitamin C
(c) Vitamin K
(d) Vitamin A

Correct answer is Option (a) Vitamin D.

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Rickets

Q7. Which of the following are the sources of fats?
(a) Oil, Ghee, Butter
(b) Eggs
(c) Rice, wheat, potatoes
(d) Iron and calcium

Correct answer is Option (a) Oil, Ghee, Butter.

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Q8. Which of the following are the sources of protein?
(a) Iron and calcium
(b) Rice and wheat,
(c) Meat, fish, eggs.
(d) Fruits and vegetables

Correct answer is Option (c) Meat, fish, eggs.

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Q9. Night blindness is caused due to deficiency of
(a) Vitamin A
(b) Vitamin B
(c) Vitamin C
(d) Vitamin D

Correct answer is Option (a) Vitamin A.

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Normal Vision & Night Blindness

Q10. Osteoporosis is primarily caused due to the deficiency of:
(a) Vitamin C
(b) Calcium
(c) Vitamin K
(d) Iron

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