Friday, February 6, 2009

TEST PAPER 27 : CHAPTER 13 : NUTRITION & RESPIRATION IN ORGANISMS : 25 MARKS

There are 13 questions in all and time limit is 45 minutes.

SECTION - A : CHOOSE APPROPRIATE ALTERNATIVE : [1 mark each, Total marks 3]


  1. The layer of dead cells having tiny openings on the roots is called...

    1. root nodule
    2. stomata
    3. chlorenchyma
    4. lenticels

  2. Cockroach shows _____ mode of nutrition.

    1. herbivorous
    2. carnivorous
    3. omnivorous
    4. parasitic

  3. The function of incisors is ______.

    1. cutting
    2. tearing
    3. grinding
    4. chewing


    SECTION - B : ANSWER IN SHORT : [1 mark each, Total marks 3]

  4. What are autotrophic organisms ?
  5. How does the rate of photosynthesis depend upon the intensity of light ?
  6. Through what does the frog respire ?


    SECTION - C : ANSWER IN BRIEF : [2 marks each, Total marks 8]

  7. Eaplain : Saprophytic nutrition.
  8. Describe exchange of gases in tissues.
  9. Describe aerobic respiration.
  10. Describe respiration in insects.


    SECTION - D : ANSWER THE FOLLOWING : [3 marks each, Total marks 6]

  11. Describe the light phase of photosynthesis.
  12. Describe nutrition in amoeba with diagram.


    SECTION - E : ANSWER IN DETAIL : [5 marks each, Total marks 5]

  13. Describe human respiratory system.


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