Important Questions Class 6 Science Chapter 2

Important Questions Class 6 Science Chapter 2 – Food: Components of Food

Chapter 2 of Class 6 Science is about ‘Components of food’. The chapter teaches about components of different food items, nutrients of food, a balanced diet and deficiency of diseases. Students are required to regularly revise and also practise a lot of questions to gain mastery over Science chapters.

Students can rely on Extramarks online learning platform as it provides the most authentic, comprehensive and reliable study solutions from Class 1 to Class 12. Extramarks website has a variety of NCERT-based study solutions including NCERT solutions, CBSE revision notes, CBSE past years’ question papers, and NCERT-based important set of questions and answers.

Extramarks question bank of Important Questions Class 6 Science Chapter 2 covers almost all the important questions that can be asked in the examination. The questions comprise a wide variety of topics from the chapter. Our expert team has collated these questions from various sources such as NCERT textbooks, NCERT exemplars, CBSE past years’ question papers, other reference books, etc.

Important questions Class 6 Science Chapter 2 serves as a practice session for the students and enables them to learn more effectively. Understanding how the questions are structured and what topics are asked makes it easier for students to face the actual exams as they have already practised many similar questions.

Get Access to CBSE Class 6 Science Important Questions with Solutions

Also, get access to CBSE Class 6 Science Important Questions for other chapters too:

CBSE Important Questions for Class 6 Science
Sr No Chapter No Chapter Name
1 Chapter 1 Food: Where Does It Come From?
2 Chapter 2 Components of Food
3 Chapter 3 Fibre to Fabric
4 Chapter 4 Sorting Materials into Groups
5 Chapter 5 Separation of Substances
6 Chapter 6 Changes around Us
7 Chapter 7 Getting to Know Plants
8 Chapter 8 Body Movements
9 Chapter 9 The Living Organisms and Their Surroundings
10 Chapter 10 Motion and Measurement of Distances
11 Chapter 11 Light, Shadows and Reflections
12 Chapter 12 Electricity and Circuits
13 Chapter 13 Fun with Magnets
14 Chapter 14 Water
15 Chapter 15 Air Around Us
16 Chapter 16 Garbage In, Garbage Out

Important Questions Class 6 Science Chapter 2 – With Solutions

The Extramarks team has created Class 6 Science Chapter 2 Important Questions for students to revise the entire chapter syllabus while solving these questions. It would help students in preparing for their examinations in a better way. It helps students to analyse their strengths and weaknesses. . Working on mistakes helps to improve level , and this would also prepare students for the expected difficulty level of the examination paper.

Mention below is a few questions and their solutions from our Important Questions Class 6 Science Chapter 2:

Question 1. Name the following:

(a) The nutrients that mainly give energy to our body.

(b) The nutrients are needed for our body’s growth and maintenance.

(c) A vitamin that is required for maintaining good eyesight.

(d) A mineral which is required for keeping our bones healthy.

Answer 1: 

  1. a) Carbohydrates and fats
  2. b) Proteins and minerals
  3. c) Vitamin A
  4. d) Calcium

Question 2. Read the following statements about diseases given below.

(i) It is caused by germs.

(ii) It is caused due to lack of nutrients in our diet.

(iii) It can be passed on to another person through contact.

(iv) It can be prevented by taking a balanced diet.

Which pair of statements describe a deficiency disease?

(a) (i) and (ii) 

(b) (ii) and (iii) 

(c) (ii) and (iv) 

(d) (i) and (iii)

Answer 2: (c) (ii) and (iv) 

Question 3. Which of the following components (nutrients) is not present in milk?

(a) Calcium

(b) Vitamin C

(c) Protein

(d) Vitamin D

Answer 3 : (b) 

Explanation:  Protein, calcium and vitamin D are in considerable amounts in milk. Vitamin C is present in an insufficient amount of milk.

Question 4. Fill in the blanks:

(a) ________ is caused by Vitamin D deficiency.

(b) Deficiency of _________ causes a deficiency disease known as beriberi.

(c) Vitamin C deficiency causes a deficiency disease known as________________ .

(d) Night blindness is influenced due to _______________ deficiency in our food.

Answer 4 : 

(a) Rickets

(b) Vitamin B1

(c) Scurvy

(d) Vitamin A

Question 5. Which of the following protein sources is varied from the others?

(a) Gram

(b) peas

(c) Soybeans

(d) Cottage cheese (paneer)

Answer 5 : (d) Cottage cheese (paneer)

Cottage cheese ( also known as paneer) is the source of animal protein, whereas gram, peas and soybeans are the sources of plant proteins.

Question 6. Which one of the following food items do not provide dietary fibre? 

  1. a) Whole grains 
  2. b) Whole pulses 
  3. c) Fruits and vegetable 
  4. d) Milk 

Answer 6 : d) Milk. 

Explanation: Dietary fibre is formed of cellulose. It is obtained mainly from plant products. Milk is an animal product obtained from cows, buffalo, and goats. Animal products do not contain dietary fibre.  

Question 7. Fill in the blanks from the list of terms given below.

( goitre, protein, fat, starch, vitamin A, sugar, vitamin C, obesity roughage, balanced diet, carbohydrates )

(a) Egg albumin is rich in ______, and egg yolk is rich in _____.

(b) Deficiency diseases can be countered by taking  ______.

(c) Eating too much of foods rich in fats may lead to a condition called _____.

(d) The component of food which does not provide any nutrients to the body yet it is essential in our food is ________.

(e) The vitamin which gets easily destroyed by heating during cooking is ____.

Answer 7:

(a) protein, fat

(b) balanced diet

(c) obesity

(d) roughage

(e) vitamin C

Question 8. 

Name two foods, each rich in:

(a) Fats

(b) Starch

(c) Dietary fibre 

(d) Protein

Answer 8:

  1. a) Butter, Cheese, chocolates
  2. b) Rice, Potato, Sugar
  3. c) Whole grains, Beans, cabbage
  4. d) Milk, Egg, pulses, meat

Question 9.

(a) List all those components of food which provide nutrients.

(b) Mention two components of food which do not provide nutrients.

Answer 9:

(a) Components of food which provide nutrients are carbohydrates, proteins, fats, vitamins and minerals.

(b) Components of food which do not provide nutrients are roughage and water.

Question 10. Which minerals are required to build our bones and teeth?

Answer 10: Minerals are needed to build our bones, and teeth are

  • Calcium 
  • Phosphorus.

Question 11. Name the different food groups.

Answer 11: Food can be broadly subdivided into the following three groups

  • Energy-giving foods
  • Bodybuilding foods
  • Protective foods

Question 12. Name the deficiency disease caused by iron deficiency.

Answer 12: The deficiency of disease caused by iron deficiency is anaemia.

Question 13. Tick (√) the correct statements.

(a) By eating only rice, we can fulfil the nutritional requirement of our body,

(b) Deficiency diseases can be countered by taking a regular balanced diet.

(c) A balanced diet should contain a variety of food items.

(d) Only meat is sufficient to provide all nutrients to the body.

Answer 13 : 

(a) By eating only rice, we can fulfil the nutritional requirements of our body. ×

Rice is a good source of carbohydrates. But they do not supply all the other nutrients to the body.

(b) Deficiency diseases can be countered by eating a balanced diet. √

A balanced diet contains an essential quantity of all our body’s required nutrients.

(c) A balanced diet should contain a variety of food items. √

A balanced diet should contain food items with different nutritional values to fulfil our nutritional requirements.

(d) Only meat is sufficient to provide all nutrients to the body. ×

Meat is a good source of protein but does not contain all the nutrients.

Question 14. Name the vitamin present in orange and lemon.

Answer 14:  The vitamin present in oranges and lemons is Vitamin C.

Question 15. How will you test for starch in a food sample?

Answer 15 : 

  • Take a small quantity of food samples.
  • Then add 2-3 drops of iodine solution to it. 
  • The appearance of a blue-black colour indicates that the food sample contains starch.

Question 16. Name the major nutrients in our food.

Answer 16:  Major Nutrients in our food are

  • Carbohydrates
  • Proteins
  • Lipids
  • Vitamins
  • Minerals and 
  • Dietary fibres.

Question 17. List the various types of vitamins.

Answer 17: 

The various types of vitamins are:

  • Vitamin A
  • Vitamin B
  • Vitamin C
  • Vitamin D
  • Vitamin E and
  • Vitamin K.

Question 18. While using iodine in the lab, a few iodine drops fell on Paheli’s socks, and a few fell on her teacher’s saree. The iodine drops on the saree turned blue-black, while their colour did not change on the socks. What can be the possible reason?

Answer 18: 

The Paheli’s teachers’ saree might have been starched. We know that starch turns blue-black with iodine solution. So the saree also turned blue-black. But Paheli’s socks did not have starch and thus did not show any change of colour.

Question 19. List some common sources of carbohydrates.

Answer 19: Some common sources of carbohydrates are: 

  • Sweet potatoes
  • Wheat
  • Sugar
  • Honey
  • Rice
  • Maize
  • Millet

Question 20. ‘Vitamins and minerals are essential in very small quantities by our body compared to other components, but still, they are an important part of our balanced diet. Explain the statement.

Answer 20: 

Vitamins and minerals are needed in very small quantities but are essential for the normal functioning of our body. It is because

(i) They are protective foods and help protect our bodies against diseases.

(ii) They help in maintaining good health.

(iii) They help in the normal growth of our body.

Question 21. Name the food materials which contain fat.

Answer 21:  The food materials which contain fat are: 

  • Ghee
  • Butter
  • Cheese
  • Egg 
  • Meat
  • Milk

Question 22. Unscramble the following words related to food components and write them in the space provided.

(a) reinpot___________

(b) menliars __________

(c) tivanmi ___________

(d) bocatradhyer _______

(e) nitesturn__________

(f) tfa_______________

Answer 22 :

(a) Protein

(b) Minerals

(c) Vitamin

(d) Carbohydrate

(e) Nutrients

(f) Fat

Question 23. What are the major functions of protein in our body?

Answer 23:  The main functions of protein in our body are:

  • It supplies materials needed to make new cells by the body and repair the damaged cells.
  • Protein is important for growth and development in children, teens, and pregnant women.
  • They are important to the body’s structure, function, and regulation.

Question 24. What is a balanced diet?

Answer 24: 

  • A diet which contains all the essential components in the right proportion is called a balanced diet.
  • The essential components include carbohydrates, vitamins, minerals, proteins, fats, fibres, and water.

Question 25. Given below are the steps to identify the presence of proteins in a food.

(i)  Next take a small quantity of the food sample in a test tube, add ten drops of water and shake it.

(ii)  First make a paste of food or powder of food to be tested.

(iii)  Finally add ten drops of caustic soda solution to the test tube and shake well.

(iv) Then add two drops of copper sulphate solution.

Which of the following is the sequence of the correct steps?

(a) i, iv, ii, iii

(b) ii, i, iv, iii

(c) ii, iii, iv, i

(d) iv, ii, i, iii

Answer 25:

 (b) ii, i, iv, iii

To identify the presence of proteins in a portion of food, first, make a paste of food or powder of food to be tested (ii). 

Next, take a small quantity of the food in a test tube, add 10 drops of water and shake it (i). 

Then add 2 drops of copper sulphate solution to it (iv).

Finally, add 10 drops of caustic soda solution to the test tube and shake well (iii). 

Keep the test tube stand for a few minutes and observe the colour of the solution in the test tube. The appearance of violet colour indicates the presence of proteins in the food item.

Question 26. ‘Water does not provide nutrients, but it is an essential component of food’. Explain.

Answer 26: Water is a vital component of our food because

(i) It helps our body to absorb nutrients from food.

(ii) It maintains the temperature of our body.

(iii) Water transports nutrients throughout the body.

(iv) Water helps in removing wastes in the form of urine and sweat.

Question 27. Paheli and Boojho peeled some potatoes and cut them into small pieces. They washed and boiled the potatoes in water. Then they threw away the excess water and fried the potatoes in oil, adding spices and salt. Although the potato dish tasted very good, it had fewer nutrients. Suggest a cooking method for potatoes that will not lower their nutrients.

Answer 27: 

Potatoes are very nutritious vegetables that provide carbohydrates, vitamins (especially vitamin C), minerals and dietary fibre. The skin of the potatoes provides extra nutrients and dietary fibre. 

Methods of cooking potatoes which will not lower their nutrient values are:

  • Wash the potatoes 
  • Cut them into thin slices. 
  • Cook the potatoes in a little amount of oil and some water.
  • Add salt and spices to it. 
  • While cooking, cover the cooking pot with a lid.

This method helps to preserve the nutrients of potatoes.

Question 28. Read the following items of food listed below. Classify those foods into carbohydrate-rich, protein-rich and fat-rich foods and fill those foods in the given table below.

( Moong dal, fish, sweet potato, mustard oil, milk, rice, egg, beans, butter, buttermilk (chhachh), cottage cheese (paneer), peas, maize, white bread.)

Carbohydrate-Rich Food Item (A) Protein-Rich Food Item (B) Fat-Rich Food Item (C)
…………………… …………………… ……………………
…………………… …………………… ……………………
…………………… …………………… ……………………
…………………… …………………… ……………………
…………………… …………………… ……………………
…………………… …………………… ……………………
…………………… …………………… ……………………
…………………… …………………… ……………………

Answer 28:  


Carbohydrate-Rich Food Item (A) Protein-Rich Food Item (B) Fat-Rich Food Item (C)
Sweet potato Moong dal Mustard oil
Rice Fish Cottage cheese
Maize Milk Milk
White bread Egg Egg
Beans Butter
Buttermilk Fish
Cottage cheese

Question 29.

Boojho was having difficulty watching things in dim light. The doctor tested his eyesight, and he prescribed a particular vitamin supplement. He advised him to include a few food items in his diet regularly.

(a)  Which deficiency disease is he suffering from?

(b) Which component of food is he lacking in his diet?

(c) Suggest some (any four) food items that he should include in his diet, 

Answer 29 : 

(a) He is suffering from night blindness. Night blindness is the inability to see objects in dim light.

(b) Vitamin A may be lacking in his diet. This is because the deficiency of vitamin A causes night blindness.

(c) Carrot, mango, papaya, green leafy vegetables, fish oil milk, etc., are food items rich in vitamin A. Therefore, Boojho should include these food items in his diet.

Question 30. What are the roles of

(a) carbohydrates?

(b) fats?

(c) vitamins?

(d) minerals?

Answer 30 : 

(a) Role of carbohydrates- Carbohydrates provide us with energy.

(b) Role of fats- Fats provide us with energy.

(c) Role of vitamins- vitamins keep us healthy and protect us from many diseases. They are needed for the proper functioning of body parts. They help the body metabolise proteins and carbohydrates.

(d) Role of minerals- Minerals help to strengthen our bones and teeth. It maintains healthy skin, hair, and nails. It balances water levels. They also help to prepare blood.

Question 31. Why does our body need nutritious food?

Answer 31: 

  • Food provides nutrients for the proper growth and functioning of the body.
  • It gives protection against diseases.
  • It provides energy to carry out physical activities.
  • Nutrients are the fuel we need to enable the body to break down food and then put this to use in the body to repair and build cells and tissue.
  • Nutrients are the components of food the body needs in adequate amounts for growth, reproduction, and leading a normal healthy life.
  • The components of nutritious foods are carbohydrates, proteins, fats, vitamins, and minerals.

Question 32. Write the sources and deficiency diseases of the vitamins A, B, C, D, E and K.

Answer 32: 

Vitamin Sources Deficiency Disease
Vitamin A Milk, egg yolk, butter, liver oils of fish Night blindness
Vitamin B Green vegetables, egg, meat, milk Beriberi
Vitamin C Citrus fruits, tomatoes, bell peppers Scurvy
Vitamin D Egg, liver oil, fish, milk Rickets
Vitamin E Sweet potato, egg, meat Damage to nerve conduction
Vitamin K Liver, cheese, egg yolk, tomato, cabbage Improper coagulation of blood

Benefits of Solving Important Questions Class 6 Science Chapter 2

Extramarks team understands the importance of regularly revising and practising by solving questions. To help students get easy access to exam-oriented questions, we have collated the most useful questions and their answers in our question bank Important Questions Class 6 Science Chapter 2.

Given below are some of the benefits that students will avail by referring to our questions and their solutions:

  • Solving Important Questions Class 6 Science Chapter 2 helps to test your preparation. A regular and systematic attempt at solving important Questions Class 6 Science Chapter 2 each day will surely hone your skills. 
  • It increases proficiency in all the topics covered in each chapter.
  • It helps in time management. Solving Chapter 2 Class 6 Science important questions decides how you need to solve your examination question paper and what all areas require better time management.
  • With Science Class 6 Chapter 2 important questions, you do not need to go through all the pages of textbooks, looking for important topics. . The questions in these papers include important questions that have either appeared in past years’ question papers or are part of the important syllabus. You can accelerate your preparation by solving Class 6 Science Chapter 2 important daily questions.
  • Solving Important Questions Class 6 Science Chapter 2 will help you to get an idea about the paper pattern and question types to be asked in examinations. Solving several important questions will make you attempt the examinations more confidently.

Extramarks have abundant study resources available on our website. Students can click on the links that are given below to access some of these resources:

Q.1 Why is glucose called a source of instant energy?



Glucose directly enters the blood and produces energy immediately through the process called respiration. Hence, it acts as a source of instant energy.

Q.2 Why are only some fruits and vegetables cooked?



  • Fruits and vegetables are rich in minerals and vitamins. These are present in a very small amount.
  • The improper washing of the fruits and vegetables results in the leaching of nutrients through water. Therefore, fruits and vegetables must not be washed after peeling and cutting.
  • Apart from this, cooking improves the taste of food but cooking fruits results in the loss of nutrients.

Q.3 Complete the given table:  

Nutrients Deficiency disorder Symptoms
Poor vision or loss of vision
Vitamin C
Vitamin B1
Tooth decay



Nutrients Deficiency disorder Symptoms
Vitamin A Night blindness Poor vision or loss of vision
Iron Anaemia Weakness
Vitamin C Scurvy Bleeding gums
Vitamin B1 Beriberi Weak muscles
Calcium Tooth decay Weak bones

Q.4 Which of the following needs to be increased in the diet of a growing child?
(a) Carbohydrates(b) Proteins(c) Minerals(d) Vitamins



Proteins are body-building foods that help in growth and repair. They are required for the growth and development of a child.

Q.5 Which of the following helps in the removal of wastes from the body?
(a) Fat(b) Water(c) Calcium(d) Vitamins


Water helps in the absorption of nutrients present in the digested food. It also helps in the removal of wastes from the body.

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FAQs (Frequently Asked Questions)

1. Why should I learn ‘Components of Food '?

Food is an essential and basic need and requirement of life. It provides vital nutrients for survival. It also helps the body to function and stay healthy. Knowing the components of food helps intake the correct proportion of nutrients and helps maintain a balanced diet.

2. What materials are available on the Extramarks website besides important questions in Class 6 Science Chapter 2?

 Extramarks has a repository of resources of study materials and students can sign up at Extramarks’ official site to access it.  Other than important questions, Class 6 Science Chapter 2, Extramarks, provide various comprehensive study materials such as NCERT solutions, chapter notes, revision notes, NCERT books, CBSE sample papers, CBSE extra questions, past years’ question papers etc.  they might need to supplement their studies to avoid last minute hassle. It’s better to plan, prepare and stay ahead with no regrets.

3. Is it necessary to maintain a balanced diet?

Maintaining a balanced diet helps to lead a healthy lifestyle. It meets all the requirements of essential nutrients by the body. Planning a proper meal helps to attain ideal body weight and also it helps to reduce the risk of deficiency diseases such as beriberi, scurvy, rickets, decay of bone and teeth, goitre, anaemia, loss of vision etc., and chronic diseases like diabetes, some types of cancers and cardiovascular diseases. So it is necessary to maintain a properly balanced diet.

4. What are the essential topics covered in Class 6 Science Chapter 2?

Class 6 Science Chapter 2 talks about various components present in food. The study of components of food is concerned with good skin, required weight, beautiful hair and proper functioning of all internal organs.

This chapter is covered in detail in NCERT books keeping in mind all the aspects related to upcoming classes. The essential topics covered in Class 6 Science Chapter 2 include various nutrients, tests for nutrients, a balanced diet and deficiency diseases.

For a complete overview of Class 6 Science Chapter 2, you can refer to Class 6 Science Chapter 2 notes by registering on the Extramarks website.