Question

Name the blood cell which takes part in immune responses and also mention its average lifespan.

Answer 1

Hint: The white blood corpuscles are also called leukocytes. The build-up immune system in our body protects us against any sickness and illness. These corpuscles live for less than 50 days.

Complete answer:
The lifespan of a WBC in a man is 13 - 20 days. The WBC and platelets together constitute 1% of the whole blood present in our body. These cells can be considered as soldiers in our body which protect us from illness and sickness thus they are consistently at war against viruses, bacteria, and other foreign invaders.
-When any infection or microbes attack our body the WBC rushes through the circulatory system to the area of infection and starts fighting against them by producing antibodies.
-The white platelets are produced in the bone marrow and then are placed in our blood and lymph tissues.
-The lifespan of some platelets is very short of 1 to 3 days that is why our bone marrow is continuously making them but in general, WBC has a lifespan of 13 to 20 days.
-The WBC count in healthy people is about 6000 to 8000 but if it is high that means our immune system is working to destroy any infection.
-This also indicates that the person is suffering from emotional or physical stress.
100 - 115 days is the life span of RBC.

So, the correct answer is the blood cell which is responsible for eliciting immune responses is WBC and its average life span is'13 - 20 days'.

Note:
-Our blood consists of three types of cells: the RBC, the WBC, and the platelets.
-In WBC hemoglobin is absent.
-In a healthy person WBC count present is 6000 to 8000.
-WBC and platelets are responsible for building up our immune system to fight against any infection or disease attacking our body.