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प्रश्न
While learning to ride a bicycle Boojho lost his balance and fell. He got bruises on his knees and they started bleeding. However, the bleeding stopped after some time.
(a) Why did the bleeding stop?
(b) What would be the colour of the wounded area and why?
(c) Which type of blood cells are responsible for clotting of blood?
उत्तर
(a) Bleeding stops due to coagulation/ clotting of blood.
(b) The colour of the wounded area would initially be dark red due to the clotting of blood.
(c) Platelets are responsible for the clotting of blood.
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संबंधित प्रश्न
What makes the blood look red?
Name the following:
Components of blood
State the Function: Vitamin K
Match the following.
1. Leukaemia | (a) Thrombocytes |
2. Platelets | (b) Phagocyte |
3. Monocytes | (c) Decrease in leucocytes |
4. Leucopenia | (d) Blood Cancer |
5. AB blood group | (e) Allergic condition |
6. O blood group | (f) Inflammation |
7. Eosinophil | (g) Absence of antigen |
8. Neutrophils | (h) Absence of antibody |
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