Question

Q4 While learning to ride a bicycle Boojho lost his balance and
fell. He got bruises on his knees and it 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 is responsible for clotting of blood?​

Answer 1

Answer:

(a)The bleeding stopped because blood clot had formed.

(b)The colour of the wounded area would be dark red due to clotting of blood.

(c)Platelets are responsible for clotting of blood.

Answer 2

a) The bleeding stopped because blood clot had formed.

b) The color of the wounded area would be dark red due to clotting of blood.

c) Platelets are responsible for clotting of blood.