Structural Organisation in AnimalsHard
Question
Vitamin-K is required for
Options
A.formation of thromboplastin
B.conversion of fibrinogen to fibrin
C.conversion of prothromnin to thrombin
D.synthesis of prothrombin
Solution
Vitamin-K (phylloquinone) is required for the synthesis of prothrombin mecessary for blood clotting. It is synthesized by bacteria in the colon. Vitamin-K is commonly called anti-haemorrhagic vitamin. Its deficiency leads to bleeding, ie no coagulation or clotting.
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