Forwarded from ㅤHAMD ALZWAWY
Forwarded from ㅤHAMD ALZWAWY
Forwarded from ㅤHAMD ALZWAWY
Forwarded from ㅤHAMD ALZWAWY
It is the main immunoglobulin in the secondary immune response :
Anonymous Quiz
61%
A
18%
B
4%
C
11%
D
5%
E
Forwarded from ㅤHAMD ALZWAWY
Forwarded from ㅤHAMD ALZWAWY
Forwarded from ㅤHAMD ALZWAWY
Which of the following immunoglobulin is least abundant ?
Anonymous Quiz
7%
IgG
3%
IgM
34%
lgD
50%
IgE
7%
IgA
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The function of MHC 2 molecules is to present
Anonymous Quiz
3%
Processed antigen peptidase to B.cell
25%
Exogenous antigen peptidase to T.helper
8%
Endogenous antigen peptidase to T.cell
54%
Processed antigen peptidase to T.cell CD4
11%
Processed antigen peptidase to T.cell CD8
Forwarded from ㅤHAMD ALZWAWY
Forwarded from ㅤHAMD ALZWAWY
Forwarded from ㅤHAMD ALZWAWY
1. Regarding tumor immunity, which one of the following is the most accurate?
(A) Both cytotoxic T cells and cytotoxic antibodies attack human cancer cells.
(B) An elevated level of alpha-fetoprotein is a marker for carcinoma of the lung.
(C) A declining level of carcinoembryonic antigen (CEA) is an indication that the
patient’s colon cancer has recurred.
(D) Cancer cells induced by chemicals have new antigens on the surface but
cancer cells induced by viruses do not.
(E) Natural killer (NK) cells do not participate in the cell-mediated response to
cancer cells because they do not have an antigen-specific receptor on their
surface.
(A) Both cytotoxic T cells and cytotoxic antibodies attack human cancer cells.
(B) An elevated level of alpha-fetoprotein is a marker for carcinoma of the lung.
(C) A declining level of carcinoembryonic antigen (CEA) is an indication that the
patient’s colon cancer has recurred.
(D) Cancer cells induced by chemicals have new antigens on the surface but
cancer cells induced by viruses do not.
(E) Natural killer (NK) cells do not participate in the cell-mediated response to
cancer cells because they do not have an antigen-specific receptor on their
surface.
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The two most common types of viral vaccines are killed vaccines and live-attenuated vaceines. Regarding these vaccines, which one of the following statements is the MOST accurate?
Anonymous Quiz
55%
Killed vaccines are safer to give to immune-compromised patients than are live attenuated vaccines,
13%
Killed vaccines induce a longer-lasting response than do live,attenuated, vaccines.
12%
Killed vaccines are no longer used in this country because they do not induce scoretory Ig A
3%
Killed vaccines induce a broader range of immune responses than do live attenuated vaccines
18%
All the above
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Regarding the primary and secondary antibody responses, whichone of the following statements is MOST accurate?
Anonymous Quiz
64%
The amount of IgG made in the secondary response greater than the amount madein the primary response
17%
The IgM made in the primary response is made primarily by memory b cells
8%
The lag phase is shorter in the primary response than in the secondary response
6%
In the primary response, memory B cells are produced, but memory T cells not
6%
Antigen must be processed and presented in the primary response but not in the secondary response.
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Antigen-presenting cells that activate helper T cells must express which one of the following on their surfaces
Anonymous Quiz
8%
Class III MHC antigens
8%
IgE
6%
Gamma interferon
18%
Class I MHC antigens
60%
Class II MHC antigens