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Which one of the following plasma proteins is involved in the coagulation of blood?
A
Fibrinogen
B
An albumin
C
Serum amylase
D
A globulin
Detailed Solution
The major plasma proteins are fibrinogen, globulins and albumins.
Fibrinogen is needed for clotting (coagulation) of blood: the enzyme thrombin converts soluble fibrinogen into insoluble fibrin threads, which form a network that traps the formed elements to make the clot.
Albumins help in maintaining the osmotic balance.
Globulins are primarily involved in the defence mechanisms of the body.
Serum amylase is an enzyme and has no role in clotting.
Hence the plasma protein involved in coagulation is fibrinogen.
Fibrinogen is needed for clotting (coagulation) of blood: the enzyme thrombin converts soluble fibrinogen into insoluble fibrin threads, which form a network that traps the formed elements to make the clot.
Albumins help in maintaining the osmotic balance.
Globulins are primarily involved in the defence mechanisms of the body.
Serum amylase is an enzyme and has no role in clotting.
Hence the plasma protein involved in coagulation is fibrinogen.