Question

ANSWER ALL PLEASE

1

Match each term below with the proper description.

-A.B.C.D.E. Activated only by exposure to antigens or APC’s                                                 -A.B.C.D.E. Immediately seeks to destroy any invading pathogen that breaches the external barriers                                                 -A.B.C.D.E. Lymphocytes                                                 -A.B.C.D.E. Antibody Production                                                 -A.B.C.D.E. Inflammation

A. T helper cells B. Innate Immune cells C. Are found in both innate and adaptive immunity D. Adaptive Immunity only E. Innate immune mechanism

2

When dendritic cells are not in contact with a pathogen they activate Treg cells which

		increase inflammation
		recruit neutrophils
		suppress inflammation and the immune response
		produce antibodies

3

When does a cytotoxic T cell decide to destroy an infected cell?

		When it recognizes a specific antigen displayed on an MHC I protein
		Cytotoxic T cells are only capable of producing antibodies
		When it sees any antigen displayed on an MHCII
		When it sees virus escaping from the cell

4

How do your white blood cells know when to proliferate in response to an infection?

		Recruiter cells travel through the bloodstream and escort other cells to the infection
		Through the release of chemical attractant signals such as cytokines and chemokines
		Through the nervous system activating white blood cells with neurons
		All of the above

5

After the first exposure to an antigen, a ________ stimulates growth and multiplication of antigen-reactive cells.

		primary adaptive immune response
		phagocytic immune response
		hyperactive cytotoxic response
		secondary innate immune response

6

Antibodies are

		are produced by T cells only
		are only produced specifically in response to foreign antigens
		able to bind non-specifically to any pathogen
		are capable of lysing cells upon impact

7

Match the following terms with the proper definition.

-A.B.C.D.E. B lymphocyte                                                 -A.B.C.D.E. Cytotoxic T cell (Tc)                                                 -A.B.C.D.E. Macrophages                                                 -A.B.C.D.E. Helper T cell (Th)                                                 -A.B.C.D.E. Antibodies

A. Alerts and recruits other cells of a threat that has been detected B. Produces antibodies in response to antigens C. Engulfs pathogens, digests, and displays their antigens to other cells D. Directly kills any cell displaying a foreign antigen on an MHCI E. Tags and binds to surface antigens; neutralizes pathogens

8

When a phagocyte recognizes a surface molecule on an invader as a foreign antigen it immediately engulf the organism, processes it, and presents the antigen to a helper T cell. This process is known as

		Opsonization
		Antigen Presentation
		Complement system vaccination
		Vaccination

9

Lymph nodes contain high concentrations of

		Allergens
		Antigens
		Phagocytes and lymphocytes
		Erythrocytes

10

Blood and lymph (fluid in the lymphatic system) have the following in common EXCEPT

		antibodies
		erythrocytes
		plasma or serum
		leukocytes 11. The liquid portion of the blood that is able to leak out of the bloodstream into our tissues and lymphatic system is known as _____________. Lymph or Plasma Erythrocytes Leukocytes Cerebrospinal fluid 12. During an infection, cells of the immune system are most likely to proliferate and reproduce in the heart in the pancreas in the bloodstream in nearby lymph nodes

Answer 1

ANSWER 1)

Activated only by exposure to antigens or APC’s - T helper cell

Immediately seeks to destroy any invading pathogen - Innate Immune CELL that breaches the external barriers   

Lymphocytes -Are found in both innate and adaptive immunit

Antibody Production - Adaptive immunity only

Inflammation - Innate immune mechanism

ANSWER 2

suppress inflammation and the immune response

ANSWER 3

When it recognizes a specific antigen displayed on an MHC I protein

ANSWER4

Through the release of chemical attractant signals such as cytokines and chemokines

ANSWER5

primary adaptive immune response

ANSWERN 6

are only produced specifically in response to foreign antigens

ANSWER 7

B lymphocyte -Produces antibodies in response to antigens

Cytotoxic T cell (Tc)-Directly kills any cell displaying a foreign antigen on an MHCI

Macrophages -Engulfs pathogens, digests, and displays their antigens to other cells

Helper T cell (Th) - Alerts and recruits other cells of a threat that has been detected

Antibodies- Tags and binds to surface antigens; neutralizes pathogens

ANSWER 8

ANTIGEN PRESENTATION

ANSWER 9

Phagocytes and lymphocytes

ANSWER 10

erythrocytes

ANSWER 11

Lymph or Plasma

ANSWER 12

in nearby lymph nodes