NEET 2011
- Exam
- NEET
- Year
- 2011
- Subject
- Zoology
- Chapter
- Human Health and Diseases
NEET 2011 · Zoology · Human Health and Diseases
Select the correct statements with respect to diseases and...
Select the correct statements with respect to diseases and immunisation
Options
- Aif due to some reason B and T-lymphocytes are damaged, the body will not produce antibodies against a pathogen
- Binjection of dead/inactivated pathogens causes passive immunity
- Ccertain protozoans have been used to mass produce hepatitis vaccine
- Dinjection of snake antivenom against snake bite is an example of active immunisation
Correct answer
A. if due to some reason B and T-lymphocytes are damaged, the body will not produce antibodies against a pathogen
Step-by-step solution
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.