Which is incorrect pair on basis of its role in immune system?
Interferons- secreted by virus infected cell which protect non-infected cells from further viral infection.
$B$ -cell - produce on army of antibodies against pathways.
Marcophases- mucous secreting cells which destroy pathogens.
$IgA$ - present in initial days of lactation to protect the infant.
Select the correct pair
Column $- I$ | Column $- II$ |
$(A)$ Physiological barrier | $(1)$ Skin |
$(B)$ Cellular barrier | $(2)$ Macrophages |
$(C)$ Physical barriers | $(3)$ interferons |
$(D)$ Cytokine barriers | $(4)$ Tears |
$(5)$ Mucus |
The thymus is a lobed organ located near the $...A...$ and beneath the $...B... $ The most appropriate combination for $\mathrm{A}$ and $\mathrm{B}$ is
A molecule that elicits an immune response is called
Lymph glands and nodes help to
Define : Autoimmunity