Q2 of 95 Page 81

Mention the following:

(i) Average life span of RBCs.


(ii) Range if RBCs per mm3 in a normal adult human female.


(iii) The two major categories of WBCs.


(iv) Blood cells involved in leukemia.

(i) Average life span of RBCs 120 days.


(ii) Range if RBCs per mm3 in a normal adult human female is about 4.5 million.


(iii) The two major categories of WBCs are granular and non granular.


Note: Cytoplasm of granular WBCs contains granules and nucleus with lobes whereas the cytoplasm of non granular WBC does not contain granules and consists of a single large nucleus.


(iv) Blood cells involved in leukemia is WBC (white blood cell).


Note: Leukemia is the cancer of the tissue forming WBS’s whose number increases manifold and is usually fatal.


More from this chapter

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1

Name the following:

Any two organelles absent in mature RBCs.

 1

Name the following:

The process of WBCs squeezing out through the walls of the blood capillaries.

 1

State which of the following statements are True.

(i) The process of coagulation starts with the release of a substance from RBCs.


(ii) Blood fails to clot readily in the case of deficiency of calcium.


(iii) The solid fibrin and thrombin are one and the same thing.


(iv) The clear liquid that oozes out after the formation of a clot is serum.

 2

Name the following:

The category of vitamin required for clotting of blood.