Which is NOT a function of blood? a. carrying oxygen from the cells to the lungs

Which is NOT a function of blood?

a. carrying oxygen from the cells to the lungs

b. transport nutrients to the cells

c. transporting waste to the kidneys

d. carrying cells and molecules to fight infection

Answer: carrying oxygen from the cells to the lungs

The blood does not transport oxygen from the cells to lungs. Instead, it brings oxygen to the cells all over the body from lungs.

Several important functions of blood include the transportation of oxygen, nutrients, waste products as well as components required for immunity. But it transports oxygen in one direction only – from the lungs to cells of the body and not the other way around. Following the utilization of oxygen to generate energy, these cells release CO2 as a waste product. Blood transports the carbon dioxide to lungs where it can be excreted. The system also restores fresh oxygen from air previously inhaled into the bloodstream for re-transportation. Although the blood carries oxygen, food and molecules of the immune system with cells and returns carbon dioxide and byproducts to excretory organs; its role regarding movement is strictly unidirectional in regard to delivering oxygen . This vital molecule is carried by blood to distant tissues and goes against this process from the lungs only.