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CBSE notes for Class 6 on Science Chapter 1 Components of Food




Introduction to Components of Food

  • All living organisms such as plants and animals require food. So, food is essential for all living organisms.
  • Carbohydrates, proteins, fats, vitamins and minerals are essential components of food, these components are called nutrients.
  • In addition, food also contains dietary fibres and waters
why do organism need foods

Different Type of Food and their components

Energy-giving food
Carbohydrates and Fats. Carbohydrates provide us instant energy. Fats are stored energy resources
Body-building food
Proteins are body-building food as they help in body growth and repair of damaged parts of the body.
Protective food
Vitamins and minerals are protective food as they protect us from many diseases. They give us resistance against disease causing germ
Explanation
Carbohydrates and Fats
Carbohydrates in our food are mainly sugar, starch.
Starch is present in grains like rice, wheat, maize, tubers like potatoes etc.
Sugar is the sweet substance. Common sugar we use is Sucrose and it is obtained from Sugar cane
Fats are stored energy resource. Animal sources include milk, butter, ghee, cheese and meat and Plants resources like oil are rich resources of fats
Proteins
Proteins are body-building food as they help in body growth and repair of damaged parts of the body.
Animal sources like eggs, fish, meat, milk, cheese and Plant sources like pulses of beans are resource of proteins
Proteins are broken-down by the digestive system into amino acids (which can be absorbed into the blood).
Vitamins and Minerals
Vitamins are protective food as they protect us from many diseases. They give us resistance against disease causing germ
Vitamins are A, B, C.D, K, E. They are obtained from Fruits, vegetables, fish liver oil, milk, eggs,
Minerals are also required in small quantities. Minerals include sodium, Calcium, Potassium, iodine and phosphorous



What is Balanced Diet?

A balanced diet is food intake that includes all the dietary needs of the organism in the correct proportions.
Balanced diet comprises the components like carbohydrates, proteins, fats, vitamins, minerals and enough water. Balanced diet keeps our body fit and resistant to diseases

Deficiency diseases

Diseases that occur due to lack of nutrients over a long period are called deficiency diseases
Vitamin/Mineral
Deficiency disease/disorder
Symptoms
Vitamin A
Loss of vision
Poor vision, loss of vision in darkness (night), sometimes complete loss of vision
Vitamin B1
Weak muscles and very little energy to work
Vitamin C
Scurvy
Bleeding gums, wounds take longer time to heal
Vitamin D
Rickets
Bones become soft and bent
Calcium
Bone and tooth decay
Weak bones and tooth decay
Iodine
Goiter
Glands in the neck appear swollen, mental disability in children
Iron
Anaemia
Weakness
crossword puzzle for Components of food class 6 science
Across
5. Dietary fibres are also known as ______
6. These protects the body from germs and diseases
8. They are body building food
9. The starch and sugar in food is called ______
Down
1. They are required for proper growth of body
2. Symptoms of Weak muscles and very little energy to work
3. Symptoms of Bleeding gums,wounds take longer time to heal
4. These are stored energy resources
7. carbohydrates, proteins, fats, vitamins and minerals are called ______

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Reference Books for class 6

Practicing make students fluent in their concept. Help your child practice math using our Class 6 Maths worksheets (Kindle Edition)
You can use this ebook on PC, tablet, mobile devices by using Free Kindle Reading Apps for android and ios.
Given below are the links of some of the reference books for class 6 science and class 6 math.

  1. Science Foundation Course For JEE/NEET/NSO/Olympiad - Class 6
  2. Science for Class 6
  3. Mathematics Foundation Course For JEE/IMO/Olympiad - Class 6
  4. Mathematics for class 6 by R S Aggarwal

You can use above books for extra knowledge and practicing different questions.



Class 6 Maths Class 6 Science

Practice Question

Question 1 What is $\frac {1}{2} + \frac {3}{4}$ ?
A)$\frac {5}{4}$
B)$\frac {1}{4}$
C)$1$
D)$\frac {4}{5}$
Question 2 Pinhole camera produces an ?
A)An erect and small image
B)an Inverted and small image
C)An inverted and enlarged image
D)None of the above






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