AP BIOLOGY

THE HUMAN IMMUNE SYSTEM

IMMUNE RESPONSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Immunoglobulins account for what percent of total plasma proteins?
A
20
B
15
C
25
D
30
Explanation: 

Detailed explanation-1: -The protein concentration in plasma/serum is approximately 60–80 mg/mL of which about 50–60% are albumins and 40% globulins (10–20% immunoglobulin G, IgG) [7, 8].

Detailed explanation-2: -Serum albumin, another protein synthesized by the liver, constitutes approximately 60 percent of all of the plasma proteins. It is very important in maintaining osmotic pressure in the blood vessels; it is also an important carrier protein for a number of substances, including hormones.

Detailed explanation-3: -ALBUMIN IS THE MAJOR PROTEIN IN HUMAN PLASMA Because of its relatively low molecular mass (about 69 kDa) and high concentration, albumin is thought to be responsible for 75% to 80% of the osmotic pressure of human plasma.

Detailed explanation-4: -Albumin is the most abundant plasma protein in human. It accounts for about 60% of the total serum protein. Albumin plays important physiological roles, including maintenance of colloid osmotic pressure, binding of key substances such as long-chain fatty acids, bile acids, bilirubin, haematin, calcium and magnesium.

Detailed explanation-5: -IgG is the most abundant immunoglobulin in plasma, found at a concentration of 8 to 18 mg/ml.

There is 1 question to complete.