Question

1) Upon exposure to a pathogen, which response is faster and stronger? a)primary response (first exposure) b)secondary response (second exposure)

2) What is the name of the protein released by virally infected cells to signal the immune system and attract NK cells and macrophages? a) complement b)antibodies c)interferon d)T-cells e) MHC

3) Which cell type(s) is (are) stimulated by a T-helper cell? a) cytotoxic T-cell and B-cell b) cytotoxic T-cell only c) B-cell only d) neutrophil e) megakaryocyte

4)Redness, heat, pain, swelling and loss of function are characteristic of: a) the complement system b) the effect of interferon c) the inflammatory process d) macrophage activity e) the production of antibodies f) NK cell activity

5)

Which part of the immune system causes holes to form in bacterial pathogens resulting in their destruction?

a)complement system

b) interferon

c) the inflammatory process

d) macrophages

e) antibodies

f) histamines

Answer 1

(1)b.secondary response(second exposure).as the primary response is the first response against pathogen it is quite slow.Whereas the secondary response is memory based and instantly show the strong response.

(2)c.Interferon

(3)a.cytotoxic T- cell and B-cell. Along with these two they also stimulate NK cells .

(4)(c)the inflammatory response.

(5)(a)complement system.