Question

The mineral ion needed for the formation of blood clot.

• A. Potassium
• B. Sodium
• C. Calcium
• D. Iron

Answer 1

The correct option is C

Calcium

The correct option is C.

Explanation of the correct option:

1. In the presence of calcium ions, thromboplastin acts on plasma protein prothrombin and converts it into thrombin.
2. Thrombin is an enzyme that, in turn, converts fibrinogen to fibrin which causes the blood to clot.

Explanation of the incorrect option:

Option A:

The main role of potassium in our body is to help maintain normal levels of fluid inside our cells.

Option B:

The human body requires a small amount of sodium to conduct nerve impulses, contract and relax muscles, and maintain the proper balance of water and minerals.

Option D:

Iron is required for the formation of hemoglobin which is the respiratory pigment present in RBC.

Final answer: The mineral ion needed for the formation of a blood clots is calcium.