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IMMUNITY
1- I- Vaccine II- Serum III- Having disease
Which of the aboves cause the developing of active immunity ?
a) I b) III c) I III d) I II e) I II III
2- Which of the following structures doesnt take role in the immunity of human body ?
a) Spleen b) Trombocytes c) Thymus gland d) Lymphocytes e) Vaccines
3- Which of the following doesnt cause antibody production in organisms ?
a)Ingestion of antigen b)Ingestion of microbes c)Vaccination d)Ingestion of antibiotic e)An increase in the number of microbes
4- Serum contains all of the following EXCEPT
a) Vitamins b) Hormones c) Antibodies d) Water e) Fibronogen
5- Antibodies are chemicals that are
a) Nonspecific b) Produced by the body in response to antigen c) Senthesized from carbohydrates
d) Synthesized from glycerol e) Transported by red blood cells
6- Which of the following is the main purpose of vaccination ?
a) To eliminate toxins from the body b) to break the cycle of microbic effects in the body c) to protect the body against the side effects of antibiotics d) to expose the body to synthetic antigens e) to provide antibody production in the body
7- A true statement about antibodies is that:
a) they are protein molecules produced by lymphocytes
b) they bind to invading microorganisms
c) together with macrophages and blood proteins kill or incapacitate pathogens
d) all of the above
e) none of the above
8- An antibody is described as:
a) a particle
b) an organism
c) a molecule
d) a fragment
e) a pathogen
9- Interferons are proteins that act against:
a) certain types of bacteria
b) natural killer cells
c) virally infected cells
d) hybridomas
e) cell lymphocytes
10- All the following are part of the nonspecific immune response EXCEPT:
b) plasma cells
c) pyrogens
e) monocytes
11- In the early stages of certain diseases, polled immunoglobulin may be administered. Often, the
disease process will be significantly less severe as a result of this treatment. The pooledimmunoglo-
bulin contains antibodies that are specific for the infectious agent. This treatment is an example of
A- active immunity
B- passive immunity
C- colostrum
D- vaccination
E- autoimmunity
12-Which of the following is the main purpose of vaccination?
A) To elimiminate toxins from the body
B) To expose the body synthetic antigens
C) To bbreak the cycle of microbic effects in the body
D) To provide antibody against the hazardous effets of antibiotics.
13-All of the following are disadvantages of organ transplants EXCEPT
a.There are too many people on the waiting list
b.Some transplants have a low succes rate
c.Transplant surgery and followup medication is expencive
d.The organ donor has to die before the organ is avaliable
14-Which of the following is not a function of blood plasma?
A) transport of O and CO
B) transport of O
C) transport of nutrients to cells
D) transport of hormones
E) removel of wastes from cells
15-Which of the following elements are found in human blood plasma but not found in serum?
A) vitamins
B) hormones
C) anntibodies
D) fibronogen
E) amino acid
16-Which statement about the immune system is not correct ?
a. each new pathogen induces a specific response
b. the system remembers pathogens it has been exposed to
c. it has ability to differentiate between normal cells and abnormal cells
d. it defeat any pathogen
e. all of the above statements are correct
17-The signaling between cells of the immune system depends upon
a. hormone receptors
b. MHC proteins
c. Antigen receptors
d. a and b
e. b and c
18-Which is not feature of antibodies?
a. have at least two antigen-binding sites
b. have variable and constant regions
c. do not affect bacterial toxins
d. are specific for antigen
e. only recognize small parts of an antigen molecule
19-An allergic response is due to
a. the overproduction of antibodies
b. hypersensitivity to non-pathogen antigens
c. anti-histamine production by mast cells
d. a decline in the immune response
e. none of the above
20-In order to destroy the antigens
(viruses , bacteria) lymphocytes (tandB) produced..
a) hormones b) enzymes c) lipids
d) antibodies c)minerals
21-Antigen presentation
A. Is not necessary for the production of antibodies.
B. Can be done by any cell in the body
C. Is the initial step in the activation of a specific, cell-mediated immune response.
D. All of the above
22- Which statement about the immune system is not correct?
a. each new pathogen induces a specific response
b. the system remembers pathogens it has been exposed to
c. it has the ability to differentiate between normal cells and abnormal cells (like cancer cells)
d. it can defeat any pathogen
e. all the above statements are correct
23-Which is not a feature of antibodies?
a. have at least two antigenen-binding sites
b. have variable and constant regions
c. do not affect bacterial toxins
d. are specific for each antigen
e. only recognize small parts of an antigen molecule
24- An allergic response is due to
a. the overproduction of antibodies
b. hypersensitivity to non-pathogen antigens
c. anti-histamine production by mast cells
d. a decline in the immune response
e. none of the above
25- Which of the following is NOT an element of the first line of defense of your immune
system?
1. lysozymes
2. mucus and cilia
3. acidic oil and sweat
4. interferon
1. __ is an example of a non-specific defense.
A. the inflammatory response
B. fever
C. interferon
D. the secretion of sweat
E. all of the above
26-The respiratory system participates in disease defense by
A. trapping organisms in mucus and sweeping them away with ciliated epithelium.
B. secreting strong acid which is toxic to many organisms.
C. housing many friendly bacteria which out-compete pathogens.
D. activating complement without any need of the antibody system so that all invading microorganisms can be immediately destroyed
E. all off the above
27-Antibodies are produced by
A. cytotoxic T-cells
B. macrophages
C. B-cell descendants
D. helper T cells
E. all of the above
28-AIDS is caused by
A. sexual promiscuity
B. homosexuality
C. a virus which attacks T-cells
D. intravenous drug use
E. all of the above