Question

Why is blood needed by all the parts of a body?
Topic: Transportation in Animals Transportation

Answer 1

HEY MATE ⭐⭐⭐
HERE'S THE ANSWER ✌

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Blood is needed by all parts of the body as it is an important part of the transport system of our body. It performs the following important functions:
(i) It transports O2 from the lungs to all the body cells.
(ii) It carries CO2, a waste product back to the lungs so that it can be exhaled easily.
(iii) It transmits heat, thus regulating the body temperature.
(iv) It also fights off diseases and infections.

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Answer 2

Dear Student,

# Blood needed by all the parts of a body because -

• All organs of the body require oxygen for their daily activities.
• This oxygen is transported by hemoglobin which is present in RBCs.
• RBCs are in turn transported to every corner of body through blood.
• Hence, blood is needed by all parts of the body.

# Functions of blood -

• It carries oxygen and carbon dioxide by hemoglobin.
• Haemoglobin acts as potent buffer to maintain blood pH.
• It helps in maintaining water content and temperature.
• Contains clotting factors to form blood clot.
• It carries blood cells and metabolic waste.

Thanks dear. Hope this helps you...