मराठी

Cellulose-rich food substances are good source of roughage in human beings because ______.

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प्रश्न

Cellulose-rich food substances are good source of roughage in human beings because ______.

पर्याय

  • human beings do not have cellulose-digesting enzymes.

  • cellulose gets absorbed in the human blood and converts into fibres.

  • the cellulose-digesting bacteria convert cellulose into fibres.

  • cellulose breaks down into smaller components which are egested as roughage.

MCQ
रिकाम्या जागा भरा
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उत्तर

Cellulose-rich food substances are good source of roughage in human beings because human beings do not have cellulose-digesting enzymes.

Explanation:

Human beings do not have cellulose-digesting enzymes in their bodies and are therefore unable to digest cellulose. Since it is not digested, it passes down the entire digestive tract from mouth to anus. It acts as roughage, adds bulk to the food and helps the body to easily get rid of undigested food.

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पाठ 2: Nutrition in Animals - MULTIPLE CHOICE QUESTIONS [पृष्ठ ८]

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एनसीईआरटी एक्झांप्लर Science [English] Class 7
पाठ 2 Nutrition in Animals
MULTIPLE CHOICE QUESTIONS | Q 12. | पृष्ठ ८

संबंधित प्रश्‍न

How are fats digested in our bodies? Where does this process take place?


Which part of the digestive canal is involved in:

Complete digestion of food ______.


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  1. Name the organ A.
  2. Name (i) liquid B, and (ii) organ C.
  3. What are the digestive enzymes D, E and F?
  4. Name the projections G present on the inner wall of organ A.
  5. Name (i) tube H (ii) part I (iii) opening J, and (iv) process K.

What is digestion? Why do only animals require a digestive system?


Study the Following Dental Formula and Then Answer the Question that Follow: 

`"i"  3/4   "c"   0/0   "pm"   0/1   "m"   1/1`

Give the dental formula of an adult human being.


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Consuming iodized salt in day to day diet is essential. 


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The removal of faeces through the anus is called excretion.


Find the odd one out. Give reasons for your choice


Observe the diagram given alongside and answer the following:

  1. Name the parts numbered 1-8.
  2. Which parts shown in the diagram are non-living?
  3. Is the tooth suited for cutting, tearing or grinding?
  4. What is the function of parts 8 and 7?
  5. What is the total number of teeth present in adult human beings?
  6. Write the dental formula of human beings.


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Correct the spellings: Reninne


Correct the spellings: Disegion


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Name the parts of the alimentary canal where water gets absorbed from undigested food.


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What is chyme?


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