Grade 7 Science Nutrition In Animals Unit 2

30 Questions | Total Attempts: 1102

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Questions and Answers
  • 1. 
    All animals require ________________for obtaining energy, growth, repair of damaged parts and functioning of the body.
  • 2. 
    The process of taking food by an animal and its utilisation in the body is called animal __________
  • 3. 
    The components of food such as carbohydrates are _______________ substances which cannot be utilised by the body.
  • 4. 
    The process of breakdown of complex components of food into simpler substances is called ______________
  • 5. 
    There are two methods of digesting food, i.e. _______________method (including chewing and grinding of food in mouth) and ____________ method (addition of digestive juices to the food by the body itself).  
  • 6. 
    _______________It is a marine animal which is covered by hard shells of calcium carbonate. It has a unique mode of nutrition.  
  • 7. 
    The food passes through a continuous canal which begins at the _________________________ and ends at the anus.
  • 8. 
    The canal is called as the _____________ Canal
  • 9. 
    There are three glands associated with the alimentary canal that secrete digestive juices that are used to convert the complex food substances into simpler substances.  check them
    • A. 

      Liver

    • B. 

      Pancreas

    • C. 

      Salivary gland

    • D. 

      Anus

  • 10. 
    The canal is divided into different parts: they are (tick the correct choices)
    • A. 

      Mouth or buccal cavity

    • B. 

      Liver

    • C. 

      Food pipe or oesophagus

    • D. 

      Pancreas

    • E. 

      Stomach

    • F. 

      Small intestine

    • G. 

      Salivary glands

    • H. 

      Large intestine

    • I. 

      Anus

  • 11. 
    The process of ___________________ starts from the mouth or buccal cavity.
  • 12. 
    The ________________ present in the buccal cavity cut the food into small pieces by chewing and grinding it.
  • 13. 
    Saliva also contains __________________________which help in partial digestion of starch.
  • 14. 
    The____________________ helps in mixing saliva with food
  • 15. 
    ____________________ is a muscular organ attached at the back to the floor of the buccal cavity
  • 16. 
    The teeth that grow after milk teeth fall off are called _____________Teeth.
  • 17. 
    The acids gradually damage the teeth making hole or cavity. This is called _____________.
  • 18. 
    Tooth decay is caused mainly because of eating food with high ________ content, _________and ________________. (check the correct options)
    • A. 

      Sugar

    • B. 

      Chillies

    • C. 

      Junk food

    • D. 

      Soft drinks

    • E. 

      Chocolates

  • 19. 
    Clean your teeth with a _____________ or ______________ at least twice a day.  
    • A. 

      Brush

    • B. 

      Dance

    • C. 

      Sleep

    • D. 

      Eat

    • E. 

      Dental floss

  • 20. 
    ______________ your mouth after every meal you eat.
  • 21. 
    Food is pushed downward by a wave like movement of the wall of foodpipe as a result of alternate contraction and relaxation. This movement is called _______________
  • 22. 
    Sometimes, food is not accepted by our stomach and is _____________ out because the food moves in the opposite direction
  • 23. 
    Ometimes, food is not accepted by our stomach and is vomited out because the food moves in the opposite direction from stomach to mouth by _________________movement in oesophagus.  
  • 24. 
    When we swallow food, a flap-like valve called___________________ closes the passage of the  windpipe and guides the food into the food pipe.  
  • 25. 
    If we laugh or talk while eating, the windpipe remains open and food particle enters into the windpipe and we experience _______________, _________________ or  _______________which clears the blockage of windpipe.  
    • A. 

      Hiccups,

    • B. 

      Die

    • C. 

      Cough

    • D. 

      Choking

    • E. 

      Cry

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