Question

Blood clotting is caused by which vitamin?

• A. Vitamin A
• B. Vitamin C
• C. Vitamin K
• D. Vitamin D

Hint:

Remember: Vitamin K is for Koagulation (German spelling of coagulation). It is essential for making clotting factors in the liver.

Answer 1

The Correct Option is C

Blood clotting is crucial for stopping blood loss after a blood vessel is damaged. This process relies on:\n

• Platelets (blood cells)
• Clotting factors (proteins in blood plasma)
• Vitamin K, vital for making some clotting factors (specifically factors II, VII, IX, and X).

Vitamin K allows the liver to create these proteins that help blood clot. Without it, clotting fails, causing too much bleeding. Therefore, the vitamin needed for proper blood clotting is: \[ \boxed{\text{Vitamin K}} \]