Question

Instead of platelets the non mammal possesses a clotting factor in.
A. Nucleated cells called thrombocytes
B. RBC
C. WBC
D. Plasma

Answer 1

Platelets are oval, round, or rod-shaped cytoplasmic structure with granules but no nuclei. Due to their adhesive properties, the main function of platelets is to protect the inner walls of blood vessels and initiate the process of blood clotting.

Complete answer:
1. Non-mammals have thrombocytes that are nuclear cells that have been shown to have a hemostatic function similar to that of mammalian platelets. Platelets are activated by transporting blood clots and collecting blood clots, and by plugging them into the plug, they respond to damage to the blood vessel wall in vivo.
2. RBC- Erythrocytes are small, biconcave, round in structure, flat in the middle and thick at the edges. The red substance found in red blood cells is called hemoglobin. It is a conjugated staining protein. The main function of hemoglobin is to carry oxygen from the lungs to body tissues and carbon dioxide into the blood.
3. WBC- They are produced by the red bone marrow, and their average lifespan is about two weeks. It is a large structure of irregular or elliptical shape. These blood cells do not contain hemoglobin. Basophils, eosinophils, and neutrophils are types of granulocytes.
Lymphocytes and monocytes are a type of agranulocyte. Antitoxin production, antibody formation, lipid metabolism support, phagocytic action on infectious organisms, tissue repair support and plasma concentration maintenance are the main functions of white blood cells. Monocytes are the largest white blood cells and the smallest white blood cells are lymphocytes.

So the correct option is (A) Nucleated cells called thrombocytes.

Note: They are formed in the red bone marrow. Their lifespan is 3 to 5 days, and most of them are destroyed in the spleen.
In blood vessels blood does not clot due to. The presence of natural anticoagulants in the blood, such as heparin and due to constant flowing of blood in vessels. Smooth endothelial lining of blood vessels also prevent clotting of blood in vessels.