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प्रश्न
With the help of chart identify and write the function of any four leucocytes.
| Type | Leucocytes | Name of cell | Function |
| Granulocytes |  |
||
 |
|||
 |
|||
| Agranulocytes |  |
||
 |
उत्तर
| Type | Leucocytes | Name of cell | Function |
| Granulocytes | |
Neutrophil | Neutrophils are responsible for destroying pathogens by the process of phagocytosis. |
|
Basophil | Basophils are present in infected and allergic conditions only. They secrete heparin, histamine and serotonin. | |
|
Eosinophil | Eosinophils destroy antigen antibody complex by phagocytosis. Their number increases in allergic condition and they show antihistaminic property. They are also responsible for detoxification as they produce antitoxins. | |
| Agranulocytes | |
Lymphocyte | B-lymphocytes are responsible for antibody production/humoral immunity. It is highly specific. T-lymphocytes are responsible for cellmediated immunity |
|
Monocyte | Monocytes are mainly phagocytic and destroy the bacteria and dead or damaged tissue by phagocytosis. |
संबंधित प्रश्न
Choose the correct alternative.
The muscular structure that separates the thoracic and abdominal cavity is _______.
Choose the correct alternative.
Which of the following animals do not have closed circulation?
Opening of inferior vena cava is guarded by _______.
Choose the correct alternative.
The fluid seen in the intercellular spaces in human is _________
Short answer question.
Identify the incorrect statement and correct it,
a. A respiratory surface area should have a large surface area.
b. A respiratory surface area should be kept dry.
c. A respiratory surface area should be thin, maybe 1mm or less.
The movement of diaphragm, intercostal muscles and rib cage helps in ______.
Fill in the blanks with the help of chart.
| Organism | Habitat | Respiratory surface/ organ |
| Coelenterates | ||
| Spiders |
Through which of the following gaseous exchange in woody flowering plants occurs?
Which of the following respiratory organ is used by aquatic arthropods for respiration?
Through which of the following reptiles, birds, and mammals respire as an adaptation for terrestrial life?
