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Multiple Choice
Which of the following is the least abundant type of plasma protein?
A
Fibrinogen
B
Globulins
C
Albumins
D
Hemoglobin
Verified step by step guidance
1
Begin by understanding the role of plasma proteins in the blood. Plasma proteins are crucial for maintaining osmotic pressure, immune responses, and blood clotting.
Identify the main types of plasma proteins: Albumins, Globulins, and Fibrinogen. Note that Hemoglobin is not a plasma protein; it is found in red blood cells and is responsible for oxygen transport.
Albumins are the most abundant plasma proteins, making up about 60% of the total plasma protein content. They help maintain osmotic pressure and transport substances.
Globulins account for approximately 35% of plasma proteins and are involved in immune functions and transport of lipids and fat-soluble vitamins.
Fibrinogen is the least abundant of the plasma proteins listed, comprising about 4% of the total plasma protein content. It plays a key role in blood clotting by converting to fibrin during the clotting process.