OBJECTIVE LIFE SCIENCE
SIGNALLING IMMUNOLOGY CANCER
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
What is the first response by the immune system to a pathogen?
|
|
Ingestion of the pathogen by B-lymphocytes
|
|
|
Ingestion of the pathogen by phagocytes
|
|
|
production of antibodies
|
|
|
production of antigens
|
Explanation:
Detailed explanation-1: -The cell-surface receptors have two functions: they initiate the phagocytosis of the pathogen, and they stimulate a program of gene expression in the host cell for stimulating innate immune responses. The soluble receptors also aid in the phagocytosis and, in some cases, the direct killing of the pathogen.
There is 1 question to complete.