In an introduction to blood plasma composition, which proteins are the most prevalent (highest concentration) in blood plasma?

• A. Fibrinogen
• B. Globulins
• C. Albumins
• D. Hemoglobin

Answer: (C)

Verified step by step guidance

1. Step 1: Understand that blood plasma is the liquid component of blood, containing water, electrolytes, nutrients, hormones, and proteins.
2. Step 2: Recognize that the major proteins in blood plasma include albumins, globulins, and fibrinogen, each serving different functions.
3. Step 3: Recall that albumins are the most abundant plasma proteins, primarily responsible for maintaining osmotic pressure and transporting substances.
4. Step 4: Note that globulins are the second most abundant group, involved in immune responses and transport, while fibrinogen is important for blood clotting but present in lower concentrations.
5. Step 5: Understand that hemoglobin is not a plasma protein; it is found inside red blood cells and is responsible for oxygen transport.