Question

Explain the function of blood

Answer 1

Blood is a combination of plasma and cells that circulate through the entire body. It is a specialized bodily fluid that supplies essential substances around the body, such as sugars, oxygen, and hormones. It also removes waste from the cells in the body.

Answer 2

Functions of Blood:

1. Transport of gases : Oxygen is carried via blood from lungs to cells in various parts of body and carbon dioxide from tissues to lungs.
2. Transport of nutrients : Simple nutrients like glucose, amino acids, fatty acids are taken up by blood from wall of alimentary canal and transported up to each cell in the body.
3. Transport of waste materials : Nitrogenous wastes like ammonia, urea, creatinine are realeased by tissues into blood which carries those to kidney for excretion .
4. Protection: Antibodies are produced in the blood and they protect the body from microbes and other harmful particles.
5. Thermoregulation : Body temperature is maintained constant at 37 degree Celsius by vasodilation and vasoconstruction
6. Transport of enzymes and hormones : Blood transports the enzymes and hormones from the site of their production to the site of their action.
7. Maintaining the balance of minerals like An, K IN the body.
8. If the bleeding occurs at the injury, platelets and. a protein called fibrinogen of the blood from a close and seal the injury.