Transportation in Plants Circulation in Animals Model Questions

10th Standard EM

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Science

Time : 01:00:00 Hrs
Total Marks : 50
    6 x 1 = 6
  1. Which is the sequence of correct blood flow

    (a)

    ventricle - atrium - vein - arteries

    (b)

    atrium - ventricle - veins - arteries

    (c)

    atrium - ventricle - arteries - vein

    (d)

    ventricles - vein - atrium - arteries

  2. A patient with blood group O was injured in an accident and has blood loss. Which blood group the doctor should effectively use for transfusion in this condition?

    (a)

    O group

    (b)

    AB group

    (c)

    A or B group

    (d)

    all blood group

  3. ‘Heart of heart’ is called

    (a)

    SA node

    (b)

    AV node

    (c)

    Purkinje fibres

    (d)

    Bundle of His

  4. The _________are the largest ofleucocytes

    (a)

    neutrophil

    (b)

    monocyte

    (c)

    basophil

    (d)

    lymphocyte·

  5. The life span of platelets is_________

    (a)

    3 weeks

    (b)

    1 month

    (c)

    2-3 days

    (d)

    40 days

  6. _______is not a feature of veins.

    (a)

    Red in colour

    (b)

    Non-elastic walls

    (c)

    Lack internal valves

    (d)

    Blood flow with low pressure

  7. 5 x 2 = 10
  8. Why is the colour of the blood red ?

  9. Name the heart valve associated with the major arteries leaving the ventricles.

  10. Mention the artery which supplies blood to the heart muscle.

  11. Differentiate between blood and lymph.

  12. Why are people with AB blood group called as "Universal Recipients"?

  13. 5 x 4 = 20
  14. Why is the Sinoatrial node called the pacemaker of heart?

  15. Differentiate between systemic circulation and pulmonary circulation.

  16. The complete events of cardiac cycle last for 0.8 sec. What is the timing for each event?

  17. Write a note an ABO blood grouping.

  18. List the difference between RBC and WBC

  19. 2 x 7 = 14
  20. How do plants absorb water? Explain.

  21. Transpiration is a necessary evil in plants. Explain.

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