Question

The function of the red blood cells is
(A) To defend the body against harmful infections
(B) To transport oxygen and carbon dioxide
(C) To clot the blood at the time of injuries
(D) To produce the white blood cells

Answer 1

Hint: The blood consists of the three types of cells as white blood cells or the leucocytes, the red blood cells or the erythrocytes and the platelets. The platelets consists of the fluid part of the body. These are in the round shape with the intended center.

Complete Answer:
The erythrocytes cell lacks the nucleus but contains the hemoglobin. These are the protein that is rich in iron content and act as the carrier of the oxygen throughout the body. In the lungs, hemoglobin gets oxygen, which ties to the iron particles, framing oxyhemoglobin. This makes the arteries red. The brilliant red, oxygenated hemoglobin goes to the body tissues, where it delivers a portion of the oxygen particles to the cell for the respiration.
After that it turned out to be hazier red deoxyhemoglobin, some of the time alluded to as diminished hemoglobin. From the cell, after the process of the respiration, the carbon dioxide is carried by them to the heart. Hence the function of the red blood cells is to transfer the oxygen and the carbon dioxide to all the parts of the body.

Thus the option (B) is correct.

Note: The red blood cells are made in the bone marrow at a speed of two million per second. In order to the formation of the red blood cells, there required many nutrients like glucose, lipids and the amino acids. The decrease in the amount of the red blood cells leads to anemia.