Cell Biology Model Question Paper

7th Standard EM

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Science

Time : 01:00:00 Hrs
Total Marks : 40
    3 x 1 = 3
  1. Basis unit of life.

    (a)

    Cell

    (b)

    Protoplasm

    (c)

    Cellulose

    (d)

    Nucleus

  2. _______ helps in cell division

    (a)

    Endoplasmic reticulum

    (b)

    Golgi complex

    (c)

    Cnetrivole

    (d)

    Nucleus

  3. Suitable term for the various components of cell is__

    (a)

    Tissue

    (b)

    Nucleus

    (c)

    Cell

    (d)

    Cell organelle

  4. 3 x 1 = 3
  5. I convert the Sun’s energy into food for the plant. Who am I? ____

    ()

                     

  6. Unicellular organisms can only be seen under a _____.

    ()

                            

  7. Cytoplasm plus nucleoplasm is equal to___.

    ()

                     

  8. 4 x 1 = 4
  9. Animal cells have a cell wall.

    (a) True
    (b) False
  10. Cell membrane is fully permeable

    (a) True
    (b) False
  11. Only plant cells have chloroplasts.

    (a) True
    (b) False
  12. Ribosomes are small organelles with a membrane.

    (a) True
    (b) False
  13. 2 x 2 = 4
  14. Assertion (A) : Tissue is a group of dissimilar cells.
    Reason (R) : Muscle is made up of Muscle cell.
    a). Both A and R are true
    b). Both A and R are false
    c). A is true but R is false.
    d). A is false but R is true.

  15. Assertion (A) : Majority of cells cannot be seen directly with naked eye because.
    Reason (R) : Cells are microscopic.
    a). Both A and R are true
    b). Both A and R are false
    c). A is true but R is false.
    d). A is false but R is true.

  16. 2 x 2 = 4
  17. Bacteria : microorganism :: mango tree : _______

  18. Chloroplast : photosynthesis :: mitochondria : ____

  19. 3 x 2 = 6
  20. What are the functions of cell wall in plant cell?

  21. What are the main things in a nucleus?

  22. Why lysosomes are known as scavengers of the cell?

  23. 2 x 3 = 6
  24. Distinguish between the following pairs Smooth ER and Rough ER Cell wall and cell membrane Chloroplast and mitochondria

  25. Write a short note on nucleus.

  26. 2 x 5 = 10
  27. Write about any three organelles in detail.

  28. Virus is called Acellular. Why?

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