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A&P 2 > ch 21 quiz > Flashcards

ch 21 quiz Flashcards

1
Q

which of the following properties distinguishes adaptive immunity from innate immunity

immunity is directed against a particular pathogen

the body reacts quickly to a pathogen to which it was previously exposed

adaptive immunity utilizes broad range barriers like skin and mucous membranes

when re-exposed to a pathogen there is usually no noticeable signs or symptoms of disease from that pathogen

adaptive immunity utilizes immune surveillance

A

immunity is directed against a particular pathogen
the body reacts quickly to a pathogen to which it was previously exposed
when re-exposed to a pathogen there is usually no noticeable signs or symptoms of disease from that pathogen

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2
Q

which of the following is a function of the lymphoid system

to reabsorb fluid from the interstitial spaces back to into the blood

to remove foreign matter from interstitial fluid before returning it to the blood

to secrete lipid-soluble hormones

to absorb dietary lipids

to absorb dietary proteins

A

to reabsorb fluid from the interstitial spaces back to into the blood

to remove foreign matter from interstitial fluid before returning it to the blood

absorb dietary lipids

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3
Q

adaptive immunity

histamine
defensins
lysozyme
pyrogens
hyaluronic acid
hydrogen peroxide
tumor necrosis factor
heparin

A

tumor necrosis factor

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4
Q

innate immunity

histamine
defensins
lysozyme
pyrogens
hyaluronic acid
hydrogen peroxide
tumor necrosis factor
heparin

A

histamine
defensins
lysozyme
pyrogens
hyaluronic acid
hydrogen peroxide
heparin

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5
Q

cytotoxic T-cells

promote the action of cytotoxic t cells
limit the immune reponse
descended from cytotoxic T cells
inhibit multiplication and cytokine secretion by other T cells
thought to be important in preventing autoimmune diseases
effectors of cellular immunity
carry out the attacks on foreign cells
only T cells that play a role in nonspecific defense

A

effectors of cellular immunity
carry out the attacks on foreign cells

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6
Q

memory T cells

A

descended from cytotoxic T cells

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7
Q

helper T cells

A

only T cells that play a role in nonspecific defenses
promote the action of cytotoxic t cells

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8
Q

regulatory t cells

A

limit the immune reponse
inhibit the multiplication and cytokine secretion by other t cells
thought to be important in preventing autoimmune diseases

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9
Q

complete each sentence

An _________ encounters, engulfs, and processes an antigen
The antigen presenting cell then migrates to the nearest ________
There it displays the antigen to ________
If the antigens are viral proteins or abnormal antigens the T cells initiate the ____________
Infected or malignant cells are then _________ before they can do further harm to the body

A

antigen-presenting cell

lymph node

T lymphocytes

immune response

destroyed

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10
Q

which cell phagocytizes an antigen and displays fragments of it on its surface

antigen-presenting cell
naive T lymphocytes
effectors T lymphocyte
anergic cell
reticular cell

A

antigen-presenting cell

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11
Q

which is true regarding anitgens

they have molecular weight of around 1000
they have one antigenic determinant (epitope)
they are considered normal by the immune system
they can contain many different antigenic determinants (epitopes)
they are usually made of lipids

A

they contain many different antigenic determinants (epitomes)

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12
Q

which is true about bacterial cells

they have one identifiable antigen that binds to antibodies
they have 2 epitopes per cell
they have many different epitopes which each bind to specific antibodies
they have many different epitopes which all bind to the same antibody
they are not antigenic

A

they have many different epitopes which can bind to specific antibodies

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13
Q

an individual antibody is made against

a whole bacterial cell
one epitope of an antigen
one antigen on the cell
all of the combined antigenic determinants on a cell
the cell’s DNA

A

one epitope of an antigen

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14
Q

each antigen has one epitome

true
false

A

true

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15
Q

many different antibodies can be made against a single antigen

true
false

A

true

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16
Q

which of the following is true when interferon attached to a cell

the virus can not enter the cell
the virus can enter the cell but cannot replicate
the virus can replicate within a cell but can not be released
viral replication takes place as usual
the virus is brought into the cell where it is digested by perioxisomes

A

the virus can enter the cell but cannot replicate

17
Q

when interferon from 1 cell attaches to a second cell

the recipient cell makes enzymes that prevent metabolism
the second cell now makes interferon and saves itself
the recipient cell makes enzymes that degrade mRNA and prevent viral protein synthesis
the recipient cell secretes enzymes that destroy the donor cell

A

the receipient cell secretes enzymes that destroy the donor cell

18
Q

which of the following is true regarding interferon

interferon is produced as a specific response to a specific virus
interferon is produced by one cell and used to warn nearby cells of the same type
interferon is able to save the cell that makes it
interferon induces production of mRNA in the recipient cell
interferon kills all bacteria nonspecifically

A

interferon is produced by one cell and used to warn nearby cells of the same type

19
Q

people with type AB blood have

both type A and type B antigens on their RBCs
both anti-A and anti-B antibodies in their serum
the A antigen on their RBCs and anti-B antibodies in their serum
the first and second choices are both correct answers
none of the choices are correct answers

A

A and B antigens on their RBCs

20
Q

when type B blood is given to a person with type A blood

the B antigen from the donor reacts with anti-B antibody in the recipient
the B antigen from the recipient reacts with anti-B antibody in the donor
the B anitgens from the donor reacts with anti-A antibody in the recipient
the A antigen from the donor reacts with anti-A antibody in the recipient
no reaction occurs

A

no reaction occurs

21
Q

which type of blood may a person with type AB blood receives

type A blood
type B blood
type AB blood
type O blood
all choices are correct

A

all choices are correct

22
Q

which viral receptor is involved in HIV attachment to the host cell

Gp41
Gp20
P24
P17
all are correct

A

Gp120

23
Q

in order for HIV to attach the host cell must have a

CD4 antigen receptor and a cell specific co-receptor
gp120 receptor
CD4 receptor and a non-specific universal receptor
MHC II receptor and a nonspecific universal receptor

A

a CD4 antigen receptor and a cell specific co-receptor

24
Q

which of the following is true regarding protease enzyme

protease enzyme makes DNA from single-stranded RNA
protease enzyme intergrates viral DNA into a host genome
protease enzyme cleaves poly-protein into individual functional viral proteins
protease enzyme helps the virus attach to the host cell
protease enzyme cleaves host proteins into individual amino acids

A

protease enzyme cleaves poly-protein into individual amino acids

25
Q

which are antigen-presenting cells

macrophages
B cells
cytotoxic T cells
all of these choices are correct
only the first and second choices are correct

A

only the 1st and 2nd choices are correct

26
Q

helper T cells interact with target cells by recognizing

antigens only
MHC proteins only
antigen-MHC protein complexes
either antigens or MHC proteins
neither antigens nor MHC proteins

A

antigen-MHC protein complexes

27
Q

helper T cells secrete __________ to stimulate the proliferation of B cells

antigens
antibodies
cytokines
agglutinins
allergens

A

cytokines

28
Q

arrange the following in the proper sequence in which they occur during the inflammatory response

  1. neutrophils roll along endothelium
  2. integrin activation
  3. margination
A

1, 2, 3

29
Q

during the inflammatory response ________ degranulate and release________

endothelial cells; cytokine
endothelial cells; histamine
endothelial cells; chemotactine
mast cells; cytokine
mast cells; histamine

A

mast cells; histamine

30
Q

which of the following describes the migration of neutrophils from blood vessels

degranulation
dilation
extravasation
neutrophilisation
none of these are correct

A

extravasation

31
Q

which of the following are needed for antibody production to occur with T cell dependent antigens

antigen presenting cell
t helper cell
b cell
all of these choices are correct answers
only the second and third choices are correct answers

A

only 2nd and 3rd choices are correct

32
Q

an antigen-presenting cells presents antigen to a t helper cell

inside a vesicle
on its surface on a class I MHC
on its surface on a class II MHC
on its surface attached to an antibody
on its CD8 receptor

A

on its surface on a class-II MHC

33
Q

a t helper cell becomes activated by a

plasma cell
antigen presenting cell
b cell
memory cell
mast cell

A

antigen presenting cell

34
Q
A

A&P 2 (55 decks)

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