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Microbio final > Test 6 > Flashcards

Test 6 Flashcards

(44 cards)

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1
Q

RhoGAM is a medication used to prevent Rh sensitization in _____ mothers who are pregnant with an _______ baby.

A. RhD-; RhD-
B. RhD+; RhD+
C. RhD-; RhD+
D. RhD+; RhD-

A

RhD-; RhD+

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2
Q

Tears contain ______, a chemical that hydrolysis _______ in Gram positive bacteria.

A. lead, flagella
B. acetic acid, capsules
C. chlorine, lipid
D. lysosome, peptidoglycan
E. hydrochloric acid, ribosomes

A

lysozyme, peptidoglycan

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3
Q

Helper T cells are also known as ______.

A. CD8 T cells
B. CD4 T cells
C. CD48 T cells
D. CD84 T cells

A

CD4 T cells

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4
Q

The following are all secondary lymphoid organs except the ______.

A. thymus
B. lymph nodes
C. tonsils
D. spleen

A

thymus

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5
Q

A term generally used to describe all white blood cells is ________.

A. hematopoietic cells
B. myeloid progenitor
C. leukocytes
D. monocytes
E. lymphocytes

A

leukocytes

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6
Q

The strategy Ruth B’s immune system uses to attack intracellular pathogens living inside her cells is to _______.

A. use antibodies to neutralize the pathogen
B. kill the human cells the pathogens are living in
C. use complement to neutralize the pathogen
D. recruit B cells to phagocytose the pathogen
E. none of the above

A

kill the human cells the pathogens are living in

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7
Q

Which of the following immune cells produces histamine to defend the body against parasites?

A. Neutrophil
B. B cell
C. Mast cell
D. Megakaryocyte

A

Mast cell

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8
Q

All epithelial surfaces of your body secrete ______.

A. sebum
B. lactic acid
C. antimicrobial peptides (AMPs)
D. lysozyme
E. complement

A

antimicrobial peptides (AMP’s)

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9
Q

________ is the most important complement protein in the innate immune response to infection.

A. C1
B. C2
C. C3
D. C4
E. C5

A

C3

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10
Q

Complement proteins are produced mainly by ______.

A. the kidney
B. the liver
C. the thymus
D. bone marrow

A

the liver

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11
Q

The ______ system move immune cells, fluids and proteins between blood and lymphoid organs.

A. excretory
B. lymphatic
C. integumentary
D. endocrine
E. pancrine

A

lymphatic

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12
Q

Keratinized cells are an important aspect of nonspecific defense because they _______.

A. are toxic to pathogens
B. create a physical barrier against pathogens
C. destroy pathogens
D. phagocytes pathogens
E. None of the choices are correct

A

create a physical barrier against pathogens

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13
Q

Virus-infected cells produce _______ to recruit and drive the proliferation of NK cells.

A. complement
B. antibodies
C. interferon
D. histamine

A

interferon

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14
Q

Cytotoxic T cells produce ________ to kill virus-infected cells by inducing apoptosis.

A. cytokine
B. interferon
C. chemokine
D. perforin
E. granzyme

A

granzyme

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15
Q

Hematopoiesis is the ______.

A. loss of blood due to hemorrhaging
B. production of only red blood cells
C. production of white blood cells, red blood cells, and platelets
D. clotting of blood to prevent excessive bleeding

A

production of white blood cells, red blood cells, and platelets

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16
Q

RhoGAM is a medication containing ______ antibodies.

A. IgK
B. IgR
C. IgE
D. IgA
E. IgG

A

IgG

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17
Q

HIV selectively infects ________.

A. NK cells
B. Helper T cells
C. Cytotoxic cells
D. Mast cells

A

Helper T cells

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18
Q

Which of the following is not a function of complement protein C3?

A. Cell lysis
B. Opsonization of pathogen
C. Facilitation of chemotaxis
D. generation of antigen

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A

Generation of antigen

19
Q

Which of the following antibodies is most important in the allergy response?

A. IgE
B. IgK
C. IgA
D. IgM
E. IgL

20
Q

An antigen is ________.

A. any molecule recognized by the immune system
B. soluble molecules immune cells use to communicate with each other
C. any molecule found only on pathogens
D. any molecule found only on human cells

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A

any molecule recognized by the immune system

21
Q

The immunoglobulin class that plays an important role in the fight against parasites is ______.

A. IgA
B. IgL
C. IgE
D. IgM

22
Q

All leukocytes, or white blood cells, originate from a single type of stem cell called the _______.

A. lymphoid progenitor cells
B. megakaryocytes
C. lymphocytes
D. pluripotent hematopoietic stem cell
E. myeloid progenitor cells

Study These Flashcards
A

pluripotent hematopoietic stem cell

23
Q

Which of the following cells secretes antibody to neutralize pathogen?

A. NK cells
B. B cells
C. T cells
D. Macrophage
E. Mast cells

24
Q

The five isotypes of immunoglobulins comprise.

Study These Flashcards
A

IgD, IgG, IgA, IgM, IgE

25
Which of the following cells of the adaptive immune system will destroy coronavirus infected cells. A. NK cells B. B cells C. T cells D. Macrophages
T cells
26
When you get infected with Staphylococcus aureus your CD4 T cells ______. A. stimulate B cells to die by apoptosis B. improve the capacity of macrophage to phagocytose Staphylococcus aureus C. kill any cells in your body infected with Staphylococcus aureus D. directly kill Staphylococcus aureus
improve the capacity of macrophage to phagocytose Staphylococcus aureus
27
Cytotoxic T cells produce _______ to create pores in an infected cell’s membrane, allowing for the entry of cytotoxic enzymes. A. cytokine B. interferon C. chemokine D. perforin E. granzyme
perforin
28
The most abundant of all white blood cells is the ______. A. B cell B. T cell C. macrophage D. neutrophil
neutrophil
29
Which of the following describes the adaptive response to infection? A. Pathogen destruction and improved pathogen recognition B. First response to infection C. Fixed mode of action D. Pathogen destruction only
Pathogen destruction and improved pathogen recognition
30
______ are molecules are found on the surface on pathogens. A. cytokines B. interferon C. non-self-antigen D. self-antigen
non-self-antigen
31
The immunoglobulin isotype that can cross the placenta is ________. A. IgA B. IgD C. IgE D. IgG
IgG
32
Which of the following pathogens will be most challenging for your immune system to detect? A. A pathogen that displays self-proteins on its cell surface B. A pathogen that releases its DNA in the cytoplasm of your cells C. A pathogen that damages your cells D. A double stranded RNA virus E. A fungal pathogen
A pathogen that displays self-proteins on its cell surface
33
Primary lymphoid organs which produce most immune system cells comprise the ______. A. thymus and bone marrow B. lymph nodes C. spleen and tonsils D. mucous membranes and lymph nodes E. liver and spleen
thymus and bone marrow
34
The immunoglobulin found in human breast milk is _______. A. IgA B. IgD C. IgK D. IgM
IgA
35
During phagocytosis, macrophage engulf pathogens into a _______ which then fuses with a ________ to destroy the invading pathogens. A. pathogen ball; B cell B. ribosome; mitochondrion C. phagosome; lysosome D. ribosome; lysosome E. lysosome; granule
phagosome; lysosome
36
Macrophages use _________ on their cell surface to detect non-self-proteins (e.g., the coronavirus spike protein) expressed on the surface of pathogens. A. cytotoxins B. anti-spike proteins C. pattern recognition receptors D. endotoxins E. PAMPS
pattern recognition receptors
37
______ are molecules immune cells use to communicate with each other. A. Antihistamines B. Antibodies C. Cytokines D. Immunomodulators
Cytokines
38
The largest antibody in the human body is _______. A. IgA B. IgD C. IgK D. IgM
IgM
39
Which of the following pairs is mismatched? A. Defense against parasites: basophil B. Kills virus-infected cells:natural killer cell C. Phagocytosis and killing of microorganisms: neutrophil D. oxygen transport: erythrocyte E. Antibody secretion: T cell
Antibody secretion: T cell
40
_______ are specialized immune cells that act as sentinels (cellular messengers), bridging the innate and adaptive immune systems. A. Dendritic cells B. B cells C. Mast cells D. Megakaryocytes E. Neutrophils
Dendritic cells
41
Which of the following innate immune cells kills cancer cells? A. Natural killer cells B. Macrophage C. Mast cells D. Dendritic cells
Natural killer cells
42
Which of the following immune cells is a phagocyte? A. B cell B. CD 8 T cell C. Macrophage D. Basophil E. CD4 T cell
Macrophage
43
The strategy your immune system uses to attack extra cellular pathogens is to ______. A. use antibodies to neutralize the pathogen B. use macrophage to ingest the pathogen C. use complement to neutralize the pathogen D. recruit neutrophils to phagocytose the pathogen E. all of the above
All of the above
44
Platelets, the small non-nucleated cell fragments that maintain the integrity of blood vessels, are derived from ______. A. lymphoid progenitor cells B. megakaryocytes C. leukocytes D. monocytes E. myeloid progenitor cells
megakaryocytes

Microbio final (4 decks)

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