Question

Could I get all the answers please,, thank you,,

Question 35 (2 points)

Which cell type is capable of producing antibodies?

Question 35 options:

	A) B cells
	B) T cells
	C) macrophages
	D) neutrophils
	E) both A and B

Question 36 (2 points)

This antibody is pentameric in structure and is the better at stimulating complement than other antibody classes (can form a staple conformation):

Question 36 options:

	A) IgM
	B) IgE
	C) IgD
	D) IgA
	E) IgG

Question 37 (2 points)

TCRs and antibodies have a few things in common, but one particularly interesting commonality is that

Question 37 options:

	A) both develop variability using gene rearrangement
	B) both are expressed by T cells
	C) both can be expressed as a secreted form
	D) both have a bivalent or Y shape

Question 38 (2 points)

The primary lymphoid tissue associated with the development of  T cells is the

Question 38 options:

	A) thymus
	B) bone marrow
	C) lymph nodes
	D) mucosal associated lymphoid tissues
	E) none of the above

Question 39 (2 points)

Which pathogen is most directly tied to the destruction of T_H cells?

Question 39 options:

	A) HIV
	B) Hepatitis B
	C) HPV
	D) A and B only
	E) All three pathogens

Question 40 (2 points)

Which cytokine downregulates and prevents the production or differentiation of T helper cells into T_H2 cells?

Question 40 options:

	A) IL-13
	B) INF-γ
	C) IL-5
	D) IL-3
	E) IL-4

Question 41 (2 points)

With a particular class of antibody (like IgG for instance), the greatest degree of amino acid sequence variability would occur in which portion of an antibody ?

Question 41 options:

	A) Fc portion
	B) Fab portion
	C) the transmembrane region
	D) constant regions

Question 42 (2 points)

IL-2 is produced by what cell type?

Question 42 options:

	A) macrophages
	B) T cells
	C) B cells
	D) neutrophils
	E) none of the above

Question 43 (2 points)

In adults, most hematopoietic stem cells reside in the:

Question 43 options:

	A) thymus
	B) bone marrow
	C) lymph nodes
	D) mucosal associated lymphoid tissues
	E) none of the above

Question 44 (2 points)

It would probably be easiest to find common myloid progenitor cells in which organ/tissue type?

Question 44 options:

	A) MALT
	B) thymus
	C) lymph nodes
	D) bone marrow
	E) kidneys

Question 45 (2 points)

Fc-receptors bind to:

Question 45 options:

	A) antibodies
	B) cytokines
	C) chemokines
	D) C3b
	E) none of the above

Question 46 (2 points)

Which of the following is a true statement about innate immunity?

Question 46 options:

	A) Innate immunity cannot detect and eliminate bacteria on its own
	B) Pathogen-associated molecular patterns such as lipopolysaccharide (LPS) are recognized by receptors specific for each of these patterns (i.e. LPS receptors and others)
	C) Innate immunity develops adaptive proteins (such as antibodies) against an antigen presented by pathogens
	D) Cytotoxic T cells are part of the innate immune system
	E) Innate immunity takes a relatively long period of time to develop (days)

Question 47 (2 points)

Which cell type below is best at bringing or carrying antigens from sites of infection to the secondary lymphoid tissue?

Question 47 options:

	A) basophils
	B) neutrophils
	C) cytotoxic T cells
	D) dendritic cells
	E) T-helper cells

Answer 1

35 - option A

- B cells

36 - option A

- igM

37 - option A

- both develop variability using gene rearrangement

38 - option A

- Thymus

39 - option A

- HIV

40 - option E

- IL-4

41- option D

- Constant region

42- option B

- T-cells

43 - option B

- Bone marrow

44 - option D

- Bone marrow

45 - option A

- antibodies

46 - option C

-Innate immunity develops adaptive proteins (such as antibodies) against an antigen

47 - option D

- Dentritic cells