6. Plasma A. is one of the formed elements B. is the liquid matrix of the blood.

Question

6. Plasma A. is one of the formed elements B. is the liquid matrix of the blood. C. transports waste products but not nutrients D. accounts for less than half of the blood volume is serum plus formed elements. 7. Functions of plasma proteins include A. body temperature regulation. B. regulation of osmotic pressure. C. transportat ion of oxygen and carbon dioxide. D. serving as a source of energy for metabolism. E. buffering the blood. 8. The plasma component that forms fibrin, the insoluble protein, in a blood clot is cglobuuin E. Tibrinolysi A. sodium.

Explanation / Answer

6) Plasma is the liquid, cell free portion of the blood which is devoid of formed elements like red blood cells, white blood cells and platelets. It accounts for 55% of volume of blood. Plasma includes fibrinogen but serum is devoid of clotting factors like fibrinogen. Plasma transports both nutrients and waste products. Therefore, the answer for this question is option B (plasma is the liquid matrix of the blood).

7) Functions of plasma proteins include regulation of osmotic pressure, transport of oxygen and carbon dioxide by hemoglobin and buffering the blood (options B, C and E). Temperature regulation is done by skin.

8) Fibrin is formed from fibrinogen by the action of thrombin. (Option D).

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