Multiple Choice
Which of the following is a type of plasma protein found in human blood?
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1. Introduction to Biochemistry
Proteins
Multiple Choice
In human blood plasma, which protein is the most abundant by mass concentration?
A
Albumin
B
Transferrin
C
Immunoglobulin G (IgG)
D
Fibrinogen
Verified step by step guidance1
Understand that the question asks for the most abundant protein by mass concentration in human blood plasma, which means the protein present in the highest quantity measured by weight per volume.
Recall that human blood plasma contains several major proteins, including Albumin, Transferrin, Immunoglobulin G (IgG), and Fibrinogen, each with distinct functions and typical concentration ranges.
Recognize that Albumin is a small, highly soluble protein responsible for maintaining osmotic pressure and transporting various substances, and it is known to be present in the highest concentration compared to other plasma proteins.
Compare typical concentration ranges: Albumin is usually around 35-50 g/L, Immunoglobulin G around 7-16 g/L, Fibrinogen about 2-4 g/L, and Transferrin approximately 2-3 g/L, indicating Albumin's dominance by mass.
Conclude that based on these concentration values, Albumin is the most abundant protein by mass concentration in human blood plasma.
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