Gbio 225 week 3 exam

 

Exam

 

  1. Any organism that causes disease is classified as a(n)

 

(1pts)

 

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pathogen.

 

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mechanical vector.

 

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antigen.

 

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biological vector.

 

2) Immunity that develops over time due to exposure to various antigens is termed

 

(1pts)

 

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adaptive immunity.

 

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innate immunity.

 

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coordinated immunity

 

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learned immunity.

 

3) The core of the immune system is made up of

 

(1pts)

 

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intact mucus membranes.

 

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intact skin.

 

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red blood cells.

 

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white blood cells.

 

4) The first barrier to invasion is

 

(1pts)

 

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antibody production.

 

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intact skin and body cavity linings.

 

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direct attack by white blood cells.

 

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development of memory cells.

 

5) All but which of the following can be called a pathogen?

 

(1pts)

 

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fungus

 

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fly

 

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virus

 

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bacterium

 

6) The production site for white blood cells is the

 

(1pts)

 

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spleen

 

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bone marrow.

 

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tonsils

 

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liver

 

7) Lymph nodes enlarge during an infection because

 

(1pts)

 

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they become infected.

 

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lymphocytes destroy invaders inside of them.

 

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they become clogged due to infections in the blood.

 

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the body produces double the amount of lymph.

 

8) T cells multiply and become specialized in the

 

(1pts)

 

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spleen.

 

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thymus.

 

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thyroid.

 

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bone marrow.

 

9) Which chemical released by white blood cells causes arterioles to dilate?

 

(1pts)

 

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complement

 

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histamine

 

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cytokines

 

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interferons

 

10) Fever develops when ____ stimulate the brain to release prostaglandins.

 

(1pts)

 

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histamines

 

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complement

 

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interferons

 

[removed]

 

cytokines

 

11) Skin is a component of which type of immunity?

 

(1pts)

 

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Adaptive

 

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Innate

 

12) Cells produced by dividing B or T cells may be set aside for future responses to threat. These cells ‘remember’ the pathogen and are called

 

(1pts)

 

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phagocytes.

 

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fibroblasts.

 

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effector cells.

 

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memory cells.

 

13) Which is the first antibody secreted during immune responses and the first one produced by newborns?

 

(1pts)

 

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IgD

 

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IgM

 

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IgA

 

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IgG

 

14) Which antibody is involved in allergic reaction?

 

(1pts)

 

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IgD

 

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IgM

 

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IgA

 

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IgE

 

15) Natural Killer cells are 

 

(1pts)

 

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neutrophils

 

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present outside of the lymphatic system only.

 

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macrophages

 

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detect and kill virus-infected body cells.

 

16) Plasma cells come from

 

(1pts)

 

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T cells.

 

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macrophages.

 

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dendritic cells.

 

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B cells.

 

17) How many different ‘types’ of Antibodies are there in the human body?

 

(1pts)

 

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2

 

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5

 

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1

 

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4

 

18) The purpose of a booster shot is to

 

(1pts)

 

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counteract specific antigens in the system.

 

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elicit a secondary response to an antigen.

 

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elicit a primary response to an antigen.

 

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re-establish the formation of antibodies.

 

19) Passive immunization

 

(1pts)

 

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is used to prevent a person from becoming infected.

 

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causes antibody formation.

 

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is the same thing as immunotherapy.

 

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is the administration of already formed antibodies from another source.

 

20) What is the name given to the chemicals which disrupt viral replication?

 

(1pts)

 

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interferons

 

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lymphokines

 

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monoclonal antibodies

 

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vaccine

 

21) Which of the following act as “filters” in the lymph system?

 

(1pts)

 

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macrophages

 

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lymph nodes

 

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complements

 

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immunoglobulins

 

22) The largest lymphoid organ is the

 

(1pts)

 

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liver

 

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thymus

 

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tonsil

 

[removed]

 

spleen

 

23)

 

The lymph vascular system begins at 

 

(1pts)

 

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the arterioles.

 

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the heart.

 

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the capillaries.

 

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the arteries.

 

24) Which characteristic(s) of urine help it to bar pathogens from the urinary tract?

 

(1pts)

 

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mucous production

 

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a high pH

 

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ammonia concentrations

 

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a low pH

 

25) Which chemical released by white blood cells causes capillaries to leak?

 

(1pts)

 

[removed]

 

complement

 

[removed]

 

interferons

 

[removed]

 

histamine

 

[removed]

 

cytokines

 

26) Which of the following would NOT be an action of the complement system?

 

(1pts)

 

[removed]

 

marking of pathogens for destruction by macrophages

 

[removed]

 

attraction of phagocytes to the scene of pathogen invasion

 

[removed]

 

trapping of pathogens in tangled protein threads

 

[removed]

 

lysis of a pathogen’s membrane

 

27) The markers that identify an individual’s cells are referred to as Major Histocompatibility complexes, what are the letters that represent this complex?

 

(1pts)

 

[removed]

 

RSW.

 

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ADS.

 

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HTC.

 

[removed]

 

MHC.

 

28) Which cells make you immune to a disease that you were previously exposed to?

 

(1pts)

 

[removed]

 

fibroblasts.

 

[removed]

 

phagocytes.

 

[removed]

 

effector cells.

 

[removed]

 

memory cells.

 

29) Antigen-presenting cells include

 

(1pts)

 

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monocytes, lymphocytes, and basophils.

 

[removed]

 

neutrophils, monocytes, and eosinophils

 

[removed]

 

macrophages, dendritic cells, and B cells.

 

[removed]

 

lymphocytes, basophils, and neutrophils

 

30) What stimulates activation of B and T cells?

 

(1pts)

 

[removed]

 

lysozyme release

 

[removed]

 

cell recognition of an antigen

 

[removed]

 

production of complement

 

[removed]

 

histamine production