The primary and secondary immune responses are carried out with the help of two special types of lymphocytes present in our blood, ie, B-lymphocytes and T-lymphocytes. The B-lymphocytes produce an array (a range) of proteins in response to pathogens into our blood to fight with them. These proteins are called antibodies. The T-cells themselves do not secrete antibodies but help B-cells to produce them.
Select the correct statements with respect to diseases and immunisation
NEET UG 2011 — Zoology Human Health and Diseases
2011mcqmedium
Select the correct statements with respect to diseases and immunisation
Official previous-year question
Held on 30 Apr 2011 · Verified 9 Jul 2026.
Options
- A
if due to some reason B and T-lymphocytes are damaged, the body will not produce antibodies against a pathogen
- B
injection of dead/inactivated pathogens causes passive immunity
- C
certain protozoans have been used to mass produce hepatitis B vaccine
- D
injection of snake antivenom against snake bite is an example of active immunisation
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