Here we are providing NCERT solutions for class 6 science chapter 2 which deals with the topic of components of food. The NCERT solutions that are given here are designed to help students learn and practice questions and different concepts related to components of food. Besides, this chapter introduces students to important topics like carbohydrates, vitamins, proteins, importance of these substances in the body etc. The NCERT chapter 2 for class 6 science solutions given here provides different examples followed by the solved exercises for the students with which they can benefit from while preparing for exams. The solutions include both objective and long and short type of questions related to this chapter.
The class 6 NCERT science solutions for components of food also helps students clear all their doubts easily as detailed explanations are provided by our experienced subject experts. NCERT solutions for chapter 2 class 6 science is available in a PDF format and students can easily as well as freely download it from our website. They can also view the PDF on the website or use the PDF at a later time as a study material. We can say that students who read through or practice these NCERT science solutions can definitely prepare well and score better marks in exams. Students can check out some of the questions below.
Mention the major nutrients that are present in our food.
The major nutrients that are in our food:
Name the following:
- Mention the nutrients that provide our body with the required energy.
- For growth and the body to be well maintained, what are the nutrients that are required?
- To maintain good eyesight, which of the vitamins are required?
- To maintain healthy bones in the body, which is the mineral that is required?
- Vitamin A
Mention any two foods that are rich in:
(3) Dietary fiber
(1) Cheese, Dark Chocolates
(2) Peas, corn.
(3) Split Peas, Black Beans.
(4) Yogurt, eggs.
Fill the blanks with appropriate answers:
1) Deficiency of Vitamin D causes ________
2) A disease known as beriberi is caused due to the deficiency of _______
3) _______ is caused due to the deficiency of Vitamin C.
4) Deficiency of _________ in our food causes night blindness.
Deficiency of Vitamin D causes Rickets.
A disease known as beriberi is caused due to the deficiency of Vitamin B1.
Scurvy is caused due to the deficiency of Vitamin C.
Deficiency of Vitamin A in our food causes night blindness.
Is it true that the same nutrients are present in all meals?
Answer: No, the same nutrients are not present in all meals
Mention why a meal must have food items that are different in their composition.
Answer: A meal must have food items that are different because different kinds of nutrients are required for our body to function properly.
Do all foods contain all the required nutrients?
Answer: No, all the nutrients that are required are not present in all types of food.
__________ and _________ are the two types of carbohydrates present in our daily food.
Answer: Sucrose and Fiber
Answer: The compounds of carbon, hydrogen and oxygen that provide the required amount of energy for our body are known as carbohydrates.
What will happen if three or more drops of iodine solution fall on starch substance?
Answer:There will be a change in the color of substance to blue-black.
A food item gives a blue-black color with iodine. What does this tell you about the composition of the food item?
Answer: If any food item gives blue-black color with iodine then, the nutrient that is present in the food is Starch.
Mention any two substances that provide carbohydrates.
Answer: The two substances which provide carbohydrates are Potato and Sugar
When an oily patch is present on a paper, what do you think is the food nutrient that is present in there?
Answer: The oily patch which appears on paper shows that fat is present.
Mention any two nutrients that provide energy.
Answer: the two energy providing nutrients are Carbohydrates and Fats.
When a body cell is damaged, what is the nutrient that helps to repair it?
Answer: The nutrient which helps in repairing the damaged body cells is Proteins.
_________ and __________ are the two nutrients that provide immunity against diseases.
Answer: Vitamins and Minerals are the two nutrients that protect the body from diseases.
Mention any two plant food items in which proteins are provided.
Answer: Dal( pulses) and Soybean are two well-known plant food items which provide proteins.
Mention any two protein sources that animals provide.
Answer: Milk and Eggs are two sources of proteins provided by animals.
What type of food is also known as body- building food?
Answer:Proteins rich foods are also known as body building foods.
Mention any two food items in which fats are abundant.
Answer: Oils and Ghee are two food items that have abundant fat.
What are the different types of Vitamins?
Answer: Various types of vitamins are:
- Vitamin A,
- Vitamin B-complex,
iii. Vitamin C,
- Vitamin D,
- Vitamin E,
- Vitamin K.
What is the vitamin that represents a group of other vitamins?
Answer:The Vitamin that represents a group of other vitamins is ‘Vitamin B- complex’
Mention any two sources that have Vitamin A.
Answer: Fish-oil and Milk are the two sources of Vitamin A.
Mention any two sources that have Vitamin B.
Answer: Liver and Beans are the two sources of Vitamin B.
Mention any two sources that have Vitamin C.
Answer: Orange or Lime and Amla are the two sources of Vitamin C.
Mention any two sources that have Vitamin D.
Answer: Fish and Butter are sources of Vitamin D.
Question 23: Explain the term roughage.
Answer: The foods containing plant fibers which are also known as dietary fibers are called roughage.
Question 24: What is the main function of roughage?
Answer:Roughage helps in getting rid of the undigested food from our body.
Mention the food items in which roughage is present.
Answer:The food items in which roughage is present are:
(a) Whole grains,
(b) Fresh fruits and
SHORT ANSWER TYPE QUESTIONS
What are nutrients? Name the major nutrients.
The components of food which are needed by our body for growth and development are called nutrients. The major nutrients are:
Question 2 :
What are the functions of carbohydrates?
Carbohydrates have six major functions within the body:
- Providing energy and regulation of blood glucose
- Sparing the use of proteins for energy
- Breakdown of fatty acids and preventing ketosis
- Biological recognition processes
- Flavor and Sweeteners
- Dietary fiber
Describe a test for detecting the presence of starch.
- Take any food item.
- Add 2-3 drops of dilute iodine solution on it.
If there is a change of color to blue-black of the food item then, starch is present.
What are the functions of proteins?
Answer: Proteins are the most important set of nutrients. They are also called body-building foods. They help in growth and repair of damaged cells and tissues of the body. They also help our body to fight against infections.
How can you test the presence of proteins in a given food item?
- Take a small quantity of the food items to be tested.
- Put 2-3 drops of iodine solution on it.
- Observe the color of the food item.
- Blue-black color indicates the presence of starch in the tested food item
What are fats? Name some fat-containing substances.
Answer:The energy rich sources of food are called fats. They provide energy to the body. All types of nuts, mustard seeds, milk and butter are the major sources of fat. Like carbohydrates, fats also contain carbon, hydrogen and oxygen but, fats contain lesser oxygen than carbohydrates.
Describe atest for detecting the presence of fat.
Answer: Take a small quantity of the food item. Rub it on a piece of white paper. On observing carefully, you will find that the piece of white paper shows an oily patch on it which indicates that the food items contain fat.
What are vitamins? Mention the various kinds of vitamins.
Answer: They are protective compounds with no energy value. They help in proper body functioning and are required by the body in very small quantities. Various kinds of vitamins are:
- Vitamin A
- Vitamin B- complex
- Vitamin C
- Vitamin D
- Vitamin E
- Vitamin K
People who eat sea-food do not suffer from Goitre. Explain.
Answer: It is so because sea-food is a rich source of Iodine and Goitre is a deficiency disease caused due to lack of Iodine.
Excess intake of fats is harmful to the body because it causes obesity. Would it be harmful to the body if there is too much intake of proteins or vitamins in a diet plan?
Answer: Yes, excess intake of proteins and vitamins in the diet is harmful and may lead to other diseases.
Name the vitamins that our body prepares in the presence of sunlight.
Answer: The vitamin that our body prepares in the presence of sunlight is Vitamin D.
Name a vitamin that is not present in milk.
Answer: Vitamin C is a vitamin that is not present in milk. The Vitamins that are present in milk are vitamins A, D, E, and K.
A patient had stunted growth, swelling on face, discoloration of hair and skin disease. The doctor advised him to eat a lot of pulses, grams, albumin of the egg and milk, etc. What is wrong with the patient? Explain.
Answer: The intake of protein is not enough in his diet and all these symptoms are caused due to the deficiency of proteins.
A small child became very thin and lean and later he became so weak that he could not move. Which nutrients should he eat so as to improve his health?
Both Carbohydrates and proteins.
What are the functions of minerals?
Answer: Minerals are the natural occurring type of food and are needed by our body in small amounts. Minerals are essential for proper growth of the body and to maintain good health. They do not provide any energy. Milk, salt, eggs and green leafy vegetables are the main sources of minerals.
Write the functions of water in our body.
Answer: Water helps our body to absorb nutrients from the food. It also helps in removing the waste from the body in the form or urine and sweat. We get water from various types of liquids, fruits and vegetables.
What is obesity?
Answer: When a person eats too much fat containing foods, then the fat gets deposited in his body and he may end up suffering from a condition called obesity.
What are deficiency diseases?
Answer: When a person eats a food continuously for a long time which may not contain a particular nutrient, then this condition is called deficiency of that nutrient. Deficiency of one or more nutrients can cause diseases or disorders in our body. Such types of diseases are known as deficiency diseases.
III LONG ANSWERS TYPE QUESTIONS
List various types of nutrients and write the functions of each.
Answer: The various types of nutrients are:
(1) Carbohydrates: They are mainly energy- providing nutrients.
(2) Fats: They provide energy to the body. They give much more energy than carbohydrates if consumed in the same amount.
(3) Proteins: They are called body-building foods. Proteins help in the formation and repairing of body parts. Skin, hair, muscles, enzymes are made up of proteins.
(4) Vitamins: Vitamins help in protecting our body against diseases. They also protect our eyes, bones, teeth and gums.
(5) Minerals: Minerals are essential for proper growth of body and to maintain good health.
What is a balanced diet? Write the components of a balanced diet.
Answer: A diet which provides the right proportion of all the nutrients that our body needs along with roughage and water is called a balanced diet. The various components of a balanced diet are carbohydrates, fats, proteins, vitamins, minerals, roughage and water.
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