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Q: Which of the following is true about blood plasma?

  • 1
    The main protein component is hemoglobin.
  • 2
    It is a faint yellow fluid.
  • 3
    It is the same as serum but without the clotting proteins.
  • 4
    It is about 90% water.
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Answer : 4. "It is about 90% water."
Explanation :

Answer: D) It is about 90% water. Explanation: The first option is incorrect because it is devoid of blood cell, also red blood cells so doesn’t contains haemoglobin. The second option is incorrect because plasma is colorless. The third option is also incorrect because plasma contains the clotting factors.

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