Which one of the following maintains the osmotic balance of blood:
Correct answer: C. Albumin
- A. Prothrombin
- B. Lipoprotein
- C. Albumin
- D. Iron
Explanation
Serum albumin accounts for 55% of blood proteins and is a major contributor to maintaining the osmotic pressure of the plasma to assist in the transport of lipids and steroid hormones. Globulins are immunogenic in function. The fibrogen helps in clotting of blood. Lipoproteins are substances made of protein and fat that carry cholesterol through the bloodstream. Prothrombin is transformed into thrombin by a clotting factor known as factor X or prothrombinase; thrombin them acts to transform fibrinogen, also present in plasma, into fibrin, which in combination with platelets from the blood, forms a clot. Iron is present in blood's haemoglobin and carries oxygen around the body. The correct option is therefore, C.
This question appeared on the HEC Phase II 2017 paper, which you can sit online with every answer explained.
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