If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence?
- Serum albumins
- Fibrinogen in the plasma
- Serum globulins
- Haemocytes
Answer
(3) Serum globulins
Solution
As per NCERT, fibrinogen, globulins and albumins are the major plasma proteins.
⇒ Fibrinogen is needed for clotting of blood, albumins help in osmotic balance, and globulins are primarily involved in defence mechanisms of the body.
∵ Antibodies (immunoglobulins) are -globulins of the serum.
∴ A deficiency of antibodies is confirmed by checking the serum globulins.
Answer: (3)