Question

Give one function of each of the following :
(i) R.B.C.
(ii) Platelets
(iii) Plasma

Answer 1

Answer:

• r.b.c:

The primary function of red blood cells is to transport oxygen to body cells and deliver carbon dioxide to the lungs.

• platelets:

to react to bleeding from blood vessel injury by clumping, thereby initiating a blood clot.

• plasma

Plasma contains proteins that help blood to clot, transport substances through the blood, and perform other functions.

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Answer 2

Dear Student,

◆ Functions of RBCs (erythrocytes) -

1. It carries oxygen and carbon dioxide by hemoglobin.
2. It gives viscosity to the blood.
3. Haemoglobin acts as potent buffer to maintain blood pH.

◆ Functions of platelets (thrombocytes) -

1. It stops bleeding by forming platelets plug.
2. Platelets helps in both clot formation as well as clot retraction.
3. They maintain integrity of vascular endothelium.

◆ Functions of plasma -

1. It carries blood cells and metabolic waste.
2. It helps in maintaining water content and temperature.
3. Contains clotting factors to form blood clot.

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