Biochemistry Plasma Proteins Essay Questions And Answers

Plasma Proteins

Question 1. Functions of plasma proteins
Answer:

Question 2. Albumin & globulin
Answer:

1. Albumin:

• It constitutes 60% of total plasma proteins
• It has a molecular weight of 69,000
• It consists of a single polypeptide chain of 585 amino acids with 17 disulfide bonds
• It is synthesized in the liver
• It has a half-life of 20 days

Importance:

• Binds to compounds & prevents them from crossing the blood-brain barrier
• Its concentration is lowered in plasma in malnutrition, nephrotic syndrome & cirrhosis of the liver
• It is excreted in the urine in nephrotic syndrome
• It is useful for the treatment of bum & hemorrhage

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2. Globulins:

• It constitutes several proteins that are separated by Electrophoresis
• They are alpha, beta & gamma globulin