Organisation of Life One Mark Questions

8th Standard EM

    Reg.No. :
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Science

Time : 00:30:00 Hrs
Total Marks : 15
    5 x 1 = 5
  1. __________ is tough and thick white sheath that protect the inner parts of the eye.

    (a)

    sclera

    (b)

    conjunctiva

    (c)

    cornea

    (d)

    iris

  2. Maintenance of constant internal environment of the body is known as _________

    (a)

    Homeostasis

    (b)

    Homeophytes

    (c)

    Homeokinesis

    (d)

    Homeophilics

  3. In the absence of oxygen, glucose is broken down in to ________.

    (a)

    Lactic acid

    (b)

    Citric acid

    (c)

    Acetic acid

    (d)

    Nitric acid

  4. _____is a thin transparent membrane that is spread across the sclera

    (a)

    Cornea

    (b)

    Conjunctiva

    (c)

    Retina

    (d)

    Ciliary body

  5. _________million alveoli located at the end of branchial tubes

    (a)

    480

    (b)

    300

    (c)

    100

    (d)

    200

  6. 5 x 1 = 5
  7. __________ is the structural and functional unit of living organisms.

    ()

    Cell

  8. The largest cell is egg of an _________.

    ()

    Ostrich

  9. ___________ is a good example for anaerobic respiration.

    ()

    Yeast

  10. _________is the protective covering of the lungs

    ()

    Pleura

  11. In human eye, lens is made up of_________

    ()

    Protein

  12. 5 x 1 = 5
  13. Carbohydrates

  14. (1)

    glucose

  15. Glucose

  16. (2)

    amino acid

  17. Protein

  18. (3)

    glcogen and other sugars

  19. Glucose

  20. (4)

    CO2 water and heat

  21. Amino acids

  22. (5)

    enzymes,hormone, protein

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