The correct answer is: B. Blood clot.
Vitamin K is a fat-soluble vitamin that is essential for blood clotting. It also plays a role in bone metabolism and wound healing.
Vitamin K is found in green leafy vegetables, such as spinach and kale, as well as in some fruits, vegetables, and dairy products. It is also available as a dietary supplement.
Vitamin K deficiency can lead to bleeding problems, such as easy bruising and prolonged bleeding from cuts. It can also cause bone problems, such as osteoporosis.
Vitamin K is an important nutrient that plays a role in many important bodily functions. It is important to get enough vitamin K from your diet or from a supplement.
Here is a brief explanation of each option:
- A. Raise plasma calcium. Vitamin K does not play a role in raising plasma calcium. This is the job of parathyroid hormone.
- B. Blood clot. Vitamin K is essential for blood clotting. It does this by activating proteins that help to form blood clots.
- C. Produce rhodopsin. Vitamin K does not play a role in producing rhodopsin. This is the job of vitamin A.
- D. Bone density. Vitamin K plays a role in bone metabolism. It helps to keep bones strong and healthy.