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प्रश्न
State briefly, the difference between white blood cells and the red blood cells.
उत्तर
| RBC | WBC |
| They do not have nucleus atmaturity | They have a large characteristic nucleus. |
| They possess haemoglobin and are red | They are colourless as they have no pigment |
| They help in transport of respiratory gases | They help in defence mechanism |
| Life span is 120 days | WBC have a short life.span of 5 to 20 days. |
| They are about 5 million/mm3 of blood. | They are about 7000/mm3 of blood. |
| In the embryonic stage the RBC are formed in the liver and spleen. But after birth, they are formed in the red bone marrow. | WBC are formed in the red bone marrow. |
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संबंधित प्रश्न
Mitochondria are regarded as semiautonomous organelles, due to the presence of ______.
Differentiate between the following pair of terms: RBC and WBC
The colour of a red blood cell is due to _____________.
Which one of the following shows the correct composition of blood?
Organelle which is regarded as the powerhouse of the cell and in which oxidative reactions of the respiratory process takes place is ______
What is erythropoiesis?
Observe the table and fill the appropriate blocks and rewrite.
| Structure of WBCs | Types of WBCs | Functions | |
| (1) |  |
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| (2) |  |
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| (3) |  |
||
| (4) |  |
The life span of an RBC is ______.
Name the following:
Any two organelles absent in mature RBCs.
Give reasons/explain:
A mature mammalian Erythrocyte lacks nucleus, mitochondria and endoplasmic reticulum.
