Question

Place the following statements that describe the 5 steps in an adaptive immune response in the order in which they occur.

-Long lived-immune cells allow the second response to a given microbe to be stronger and faster than the first response

-Adaptive immune cells are born in the bone marrow, then mature in either the bone marrow or the thymus

-Adaptive immune cells use specific receptor proteins to bind to antigens very specifically

-Intracellular signaling pathways are initiated, causing the adaptive immune cell to change cell division, gene expression, and protein translation

-Adaptive immune cells kill invading microbes, either directly or indirectly

Which of the following statements describe Class I MHC molecules, and which describe Class II MHC molecules?

-A.B.C.	This molecule is expressed on all nucleated cells.
-A.B.C.	This molecule interacts with proteins expressed on the surface of Cytotoxic T cells.
-A.B.C.	This molecule is expressed on the surface of Antigen presenting cells.
-A.B.C.	This molecule is important for activating Helper T cells
-A.B.C.	This molecule is expressed on the surface of B cells.
-A.B.C.	This molecule binds to antigens that come from primarily intracellular pathogens

A.	Class I MHC.
B.	Class II MHC
C.	Both Class I and Class II MHC.

Match each immune cell with the method it uses to neutralize a pathogenic microbe that has infected a human

-A.B.C.D.E.F.	Cytotoxic T cell
-A.B.C.D.E.F.	Helper T cell
-A.B.C.D.E.F.	B cell
-A.B.C.D.E.F.	Natural Killer Cell
-A.B.C.D.E.F.	Macrophage
-A.B.C.D.E.F.	Basophil/Mast Cell

A.	kills infected human cells after recognizing antigens displayed on MHC class 1
B.	does not directly kill microbes; after recognition of a specific antigen displayed on MHC Class 2, it secretes molecules that help other cells to do so.
C.	phagocytoses microbes after recognizing specific antigens; secretes antibodies
D.	kills infected human cells after recognizing PAMPs on infected cell membranes
E.	Phagocytoses microbes after recognizing PAMPs; acts as an Antigen Presenting Cell to activate another type of immune cell
F.	Does not directly kill microbes; secretes histamine to initiate an inflammatory response.

Answer 1

1.

This molecule is expressed on all nucleated cells- A

This molecule interacts with proteins expressed on the surface of Cytotoxic T cells-A

This molecule is expressed on the surface of Antigen presenting cells-C

This molecule is important for activating Helper T cells-B

This molecule is expressed on the surface of B cells-B

This molecule binds to antigens that come from primarily intracellular pathogens-C

2.

Cytotoxic T cell-A

Helper T cell-B

B cell-C

Natural Killer Cell-D

Macrophage-E

Basophil/Mast Cell-F