Q2. Mention the three kinds of cells present in blood. Write one function of each
Answers
Answer:
Three kinds of cells present in the blood are red blood cells, white blood cells and platelets.
Explanation:
Three kinds of cells present in the blood are red blood cells, white blood cells and platelets.
Red Blood Cells (RBC)
Red blood cells are also called red blood corpuscles, erythrocytes or erythroid cells. Haemoglobin, an iron-containing protein is present inside a red blood cell which is responsible for its red colour. Shape of red blood cells are biconcave and are enucleate. Life span of red blood cells are of 120 days.
Functions of Red Blood Cells
- Blood viscosity
- Oxygen and carbon dioxide transport throughout the body.
- Buffering function.
White Blood Cells (WBC)
White blood cells are also called white blood corpuscles and leukocytes. They have nuclei. The different white blood cells are differentiated by their cell lineage. They are the part of body's immune system.
Function of White Blood Cells
- Immune defense.
- Inflammatory response.
- Antibody Production
Platelets
Platelets are also called thrombocytes. They have no cell nucleus and are the fragments of cytoplasm which are derived from megakaryocytes of the bone marrow or lung.
Function of Platelets
- Maintain homeostasis.
- Maintain vascular integrity.
- Blood coagulation.
- Clot retraction
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Answer:
Blood is made up of plasma and corpuscles. Three kinds of corpuscles are WBC, RBC and blood platelets. Red blood Corpuscles (RBC) are small biconvex cells that contain Haemoglobin to transport O, from the hings to the body cells and CO₂ from body cells to the hings. White blood cells (WBC)-main function is defence of the body against diseases and other infection. Blood platelets are responsible for the clotting of blood during injuries.