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Nutrition

All the subst...

Question

All the substance in our food which are useful for various bodily processes are called______.

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Solution

All the substance in our food which are useful for various bodily processes are called nutrients.

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Q. Fill in the blanks.
(a) The process of intake of food and utilising it for all life processes is called .......... .
(b) All the substances in our food which are useful for various bodily processes are called .......... .
(c) Carbohydrates and .......... provide .......... to our body.
(d) In a balanced diet, all the nutrients are present in the ....... proportion.
(e) In the food pyramid, cereals are given the maximum space because they fulfil our .......... requirement.
(f) Intake of more food than necessary causes .......... .

Q. An organism A which cannot move from one place to another, makes a simple food B from the substances C and D available in the environment. This food is made in the presence of a green coloured substance E present in organs F in the presence of light energy in a process called G. Some of the simple food B also gets converted into a complex food H for storage purposes. The food H gives a blue-black colour with dilute iodine solution.
(a) What is (i) organism A (ii) food B, and (iii) food H?
(b) What are C and D?
(c) Name (i) green coloured substance E, and (ii) organ F.
(d) What is the process G?

a) Mucus is not used for churning the food or digesting it. Then why is it secreted in the stomach?

b) In the process of photosynthesis food A is prepared which gets converted into food B.What are A and B? Why is A converted to B?

c) When we are asleep we are not performing any activity still our life processes are going on? Why?

Q. (a) Define a nutrient. Name four important nutrients present in our food.
(b) What are the various types of heterotrophic nutrition?

Q. Food provides us with a lot of components that are needed by our body. These components are called _________ .

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