reviewer in microbiology

8/18/2019 Reviewer in Microbiology

1/25

MICROBIOLOGY 2010

1. The sudden unexpected occurrence of a disease in a given population:a. Outbreak b. Zoonotic c. Endemic d. Sporadic

2. causative agent of peptic ulcer a. Escherichia coli b. !ordetella pertusis c. Shigella d"senteriae d. #elicobacter p"lori

$. The %four o&clock habit' promoted b" the (epartment of health is designed to prevent thespread of:a. (engue fever b. Tuberculosis c. )alnutrition d.malaria

*. The first drug available for #+,:a. Z(- b. )/ c. T)/ d. 0)0

. n immediate h"persensitivit" reaction follo ing exposure of a sensiti3ed individual tothe appropriate antigen:a. #a" fever b. naph"laxis c. sthma d. (esensitation

4. thin proteinaceous appendage necessar" for bacterial con5ugation:a. 0ilium b. Trichome c. 6lagellum d. /ilus

7. The use of nitrite as preservative for food is discouraged because:a. +t can discolour the meat b. +t can react ith amines to form carcinogenic

nitrosamines c. +t decomposed to nitric acid hich can react ith heme pigments d. +t is not readil" available

8. The disinfectant of choice for municipal ater suppl":a. 9"sol b. 0hlorine c. O3one d. everse osmosis

. n ob5ect that is able to harbour and transmit microorganisms:a. )ite b. 6omite c. rthropod d. ,ector

1;. dministration of a toxoid cenfers:a.


2/25

MICROBIOLOGY 2010

17. The capacit" of an organism to produce a toxin is kno n as:a. /athogenicit" b. ,irulence c. Toxigenicit"d. Toxicit"

18. The !oraca" ater as declared unsafe due to:a. +ndustrial astes b. 6ecal coliforms c. ed tide d. Oil spills

1 . The male ascaris is distinguished from the female because its tail is:a. Straight b. Slim c. !lunt d. 0urved

2;. +t refers to ater suitable for drinking:a. /otable b. Edible c. bacteria@free d. Odor@free

21. )icrobial decomposition of proteins ith the production of # 2S and amines is kno n as:a. 6ermentation b. /utrefaction c. (entrification d. Transpeptidation

22. od@shape bacteria curved from commas are kno n as:a. !acilli b. 0occi c. Spiral d. ,ibrios

2$. This statement is true about viral infection:a. ,iral infection are self limiting b. ,iral infection confer lifetime immunit"

c. viral infections are treated b" antibiotics d. ll the statements arecorrect

2*. The heat stable lipopol"saccharide in the outer membrane of gram@negative cell all thatis toxic to the host is kno n as:a. Tetanospasmin b. flatoxin c. Enterotoxin d. endotoxin

2 . To abilit" of a microorganism to enter a host? gro ? reproduce and spread throughout its bod" is kno n as:a. +nvasiveness b. /athogenicit" c. Toxigenicit"d. ,irulence

24. The intimate living together of members of t o different species is kno n as:a. )utualism b. 0ommensalism c. S"mbiosis d. OT

27. /lastics that can be decomposed b" microorganism are said to be:a. ec"clable b. !iodegradable c. Earth@friendl" d. eversible

28. (engue virus vector:a. /lasmodium falciparum b. edes ag"pti c. nopheles mos=uito d.


3/25

MICROBIOLOGY 2010

a. 6 plasmidsb. plasmids c. Tansposons d. !oth ! and 0$7. Aroup of microorganisms that can be transmitted to humans b" animal vectors like

insects:a. /roto3oa b. ickettias c. 0hlam"dias d. )"oplasmas

$8. The first chemotherapeutic agent significall" discovered and evaluated:a. Sulfonmide b. /enicillin c. Salvarsan d. och&s postulates include the follo ing? except:a. The suspected organism should be present in health individuals

b. b. The organism must be isolated and gro n as pure culture in the laborator"c. c. The organism must initiate the s"mptoms of the disease in health" animalsd. d. The organism must be re@isolated from the animal and be cultured

* . The follo ing are contributions of 9ouis /asteur in microbiolog"? except:a. Terms %aerobic' and %anaerobic' b. 6ractional sterili3ation c. /asteur

flask d. 6ermentation*4. phenomenon herein an organism exhibits plasticit":

a. (imorphism b. /ol"morphism c. /leomorphism d. 6leximorphism*7. The follo ing can be sterili3ed in an autoclave? except:

a. Olive oil b. 0ulture media c. Cater d. Alass are*8. biological sterili3ation indicator used to test autoclave efficienc":

a. ,irus b. !acillus thuringiensis c. !acillus stearothermophillus d. 0lostridium botulinum

* . /hase in the bacterial gro th curve herein the culture is in the period of balancedgro th:a. 9og phase b. 9ag phase c. Stationar" phase d. (eath phase

;. process b" hich bacterial endospore return to its vegetative state:a. /ol"morphism b. )utagenicit" c. Aermination d.

Sporulation1. ibosomes of candida albicans are reffered to as:

a. 7;s b. 8;s c. ;s d. 1;;s2. Organisms that can gro at bod" temperature:

a. Thermophiles b. /s"chrophies c. cidophies d. )esophiles$. Specific process of reproduction among prokar"otes:

a. Sporulation b. Transverse binar" fission c. Aermination d.


4/25

MICROBIOLOGY 2010

*. process of gene transfer here the carrier of (< is a virus:a. Transduction b. 0on5ugation c. Transformation d. !oth and 0

. structurall" mature infections viral particle:a. ,irion b. 0apsid c. 0apsule d. spore

4. n algae group responsible for red tide poisoning:a. (inoflagellate b. (iatom c. Euglenoid d. och&s /ostulates

c. Aerm Theor" d.


5/25

MICROBIOLOGY 2010

a. llo s the movement of fetus d. llo s the fetus to float b. /rotects against mechanical in5ur" e.


6/25

MICROBIOLOGY 2010

8 . egarding the nature of medicinall" important viruses? hich one of the follo ingstatements is least accurateFa. /olio virus is a non@enveloped virus ith < as its genome

b. Epstein@!arr virus is a non@enveloped virus ith < as its genomec. #epatitis ! is an enveloped virus ith < as its genomed. +nfluen3a virus is an enveloped virus ith < as its genome

84. The follo ing statements regarding the capsules of bacteria ar*e correct? except:a. )ost bacterial capsules are pol"saccharides and serve to protect the bacteria b"

inhibiting phagoc"tosis b. !acterial capsules can var" antigenicall"? and as a result some bacteria have man"

serologis t"pesc. !acterial capsules can be purified and used in vaccines against certain bacteria?

example the /neumococcus.d. )ost gram@positive bacteria have capsules? hereas gram@negative bacteria rarel" do.

87. The follo ing statements regarding coccidiodes immitis are correct? except:

a. +t is dimorphic fungus that gro s as a mold in the soil and as spherules in the bod" b. +nfection usuall" results from the inhalation of asexual spores GanthroconidaH? hencethe primar" site of infection is the lungs

c. Chen cultured in the laborator"? the organism forms budding "eastsd. The most important host defense against this organism is cell@mediated immunit".

88. The follo ing statements regarding bacterial exotoxins are correct? except:a. The" are integral parts of the cell all

b. The" are produced b" both Staph"lococcus aureus and Escherichia colic. The" are pol"peptides consisting of t o functional regions? the one that binds to cell

receptors and one that has the toxic acrtivit"d. Treatment of some exotoxins ith formaldeh"de "ields a toxoid? hich is used as the

immunogen in certain vaccines8 . The follo ing statements regarding the 0$ component of the complement cascade are

correct? except:a. +t is involved in both the classic and the alternative path a"s

b. +ts 0$a fragment can cause anaph"laxis b" releasing histamines from mast cellsc. +ts 0$b fragment binds to both +gA and surface receptors on neutrophilsd. +ts 0$b fragment is part of the complex that causes l"sis of gram@negative bacteria

such as


7/25

MICROBIOLOGY 2010

e. The pneumococcal vaccine contains capsular pol"saccharide of man" serot"pes and isrecommended primaril" for older people.

1. Several viruses infect the intestinal tract as their initial site of infection. Chich of thefollo ing is least likel" to do thisFa. #epatitis virus b. /olio virus c. otavirus d. )umps virus

2. /enicillin is ver" effective antibacterial drug but their use is limited b" allergic reations.+n these allergies? /enicillin acts as a hapten. Chich of the follo ing is the most accurate:a. /enicillin a T@dependent antigens? hich bind to receptors on ! cells and stimulate an

antibod" response b. /enicillin interacts ith T cell receptors on 0(*@positive T cells and activates themc. /enicillin binds to carrier proteins? then interacts ith the ! cell receptor and carrier

proteins. The carrier protein epitope is presented to the helper T@celld. /enicillin interacts ith the earl" comnplements G01? 0*? 02 and 0$H to release

inflammator" mediators$. The causative agent of suppurative disease like phar"ngitis and cellulites and

nonsuppurative disease like rheumatic fever and acute glomerulonephritisa. Staph"lococcus aureus d. Staph"lococcus epidermidis

b. Streptococcus p"ogenes e. Streptococcus agalactiaec. Streptococcus pneumonia

*. The causative agent for food poisoning? TSS and skin boilsa. Staph"lococcus aureus d. Staph"lococcus epidermidis

b. Streptococcus p"ogenes e. Streptococcus agalactiaec. Streptococcus pneumonia

.


8/25

MICROBIOLOGY 2010

1;;. naerobic? gram@positive ith terminal spore affecting neutrotransmitters leading toexcitator" neurons that are unopposed and extreme muscle spasm

a. )eningococcus d. 0lostridium tetani b. Aonococcus e. 9isteria monoc"togenesc. !acillus antracis

1;1. erobic? non @ spore forming organism that exhibits tumbling motilit" and capable ofcausing meningitis and sepsis in ne born and immunocompromised patients.

. )eningococcus 0. !acillus antracis E. Listeria monocytogenes !. Aonococcus (. 0lostridium tetani1;2. 9arge? spore@ forming rod? hose capsule is composed of pol"@ (@ glutamate and ma" causeCool Sorter&s disease. . )eningococcus C. Bacillus antracis E. 9isteria monoc"togenes !. Aonococcus (. 0lostridium tetani

1;$. 0haracteri3ed ph"siologicall" b" a %sardonic smile'. . 0lostridium perfringens 0. 0lostridium botulinum E. 0lostridium dificile

B. Closrtidium tetani (. 0or"nebacterium diphtheria1;*. The causative agent of gas gangrene. A. Clostridium perfringens 0. 0lostridium botulinum E. 0lostridium dificile !. 0losrtidium tetani (. 0or"nebacterium diphtheria1; . +n stained smear? it is usuall" seen in 0hinese letter arrangement having metachromaticgranules and ma" infect the respirator" s"stem. . 0lostridium perfringens 0. 0lostridium botulinum E. 0lostridium dificile

!. 0losrtidium tetani D. Corynebacterium diphtheria1;4. naerobic? gram@ positive? spore@ forming rods? hich is a normal flora of the intestine. +t

has enterotoxin that causes ater" diarrhea and ma" lead to pseudomembranous colitis.. 0lostridium perfringens 0. 0lostridium botulinum E. Clostridium dificile

!. 0losrtidium tetani (. 0or"nebacterium diphtheria1;7. The causative agent of food poisoning from canned good foods. . 0lostridium perfringens C. Clostridium botulinum E. 0lostridium dificile

!. 0losrtidium tetani (. 0or"nebacterium diphtheria1;8. halophilic coma shaped? gram negative bacteria. . Escherichia coli 0. Shigella d"senteriae E. 0amph"lobacter 5e5uni !. Salmonella t"phi D. Vibrio cholerae 1; . gram negative? coma shaped microaerophilic rod that causes enterocolitis and can becultured in Skirro &s agar.

. Escherichia coli 0. Shigella d"senteriae E. Camphylobacter jejuni !. Salmonella t"phi (. ,ibrio cholerae11;. 6acultative gram negative rods? non@ lactose fermenting and ma" cause enterocolitisGd"senter"H. . Escherichia coli C. Shigella dysenteriae E. 0amph"lobacter 5e5uni !. Salmonella t"phi (. ,ibrio cholerae111. -rinar" tract infection G-T+H? sepsis neonatal meningitis and %travellers diarrhea' are themost common disease caused b" this gram negative? non@ lactose fermenting bacilli.


9/25

MICROBIOLOGY 2010

A. Escherichia coli 0. Shigella d"senteriae E. 0amph"lobacter 5e5uni !. Salmonella t"phi (. ,ibrio cholerae112. 0eftriaxone is the most effective drug used to treat this facultative? non@ lactose fermenting?gram negative rod hich is capable of producing #2S. . Escherichia coli 0. Shigella d"senteriae E. 0amph"lobacter 5e5uni B. Salmonella typhi (. ,ibrio cholerae11$. /enicillin is effective for this spirochete organism causing s"philis. . )"cobacterium leprae 0. !orrelia burgdorferi E. 9eptospira interrogans !. )"cobacterium tuberculosis D. Treponema pallidum11*. Spirochete? hich is the causative agent of leptospirosis.

. )"cobacterium leprae 0. !orrelia burgdorferi E. Leptospira interrogans !. )"cobacterium tuberculosis (. Treponema pallidum11 . Spirochete? hich is causative agent of l"me disease and can be treated b" (ox"c"cline forearl" stage and /en A for late stages. . )"cobacterium leprae C. Borrelia burgdorferi E. 9eptospirainterrogans !. )"cobacterium tuberculosis (. Treponema pallidum114. n acid@ fast bacillus that have m"colic acid in its cell all? hich can be seen in a palisadearrangement. A. ycobacterium leprae 0. !orrelia burgdorferi E. 9eptospirainterrogans !. )"cobacterium tuberculosis (. Treponema pallidum117. n acid@ fast? catalase negative bacillus that can be gro n in 9o enstein@ Iensen mediumand is capable of producing


10/25

MICROBIOLOGY 2010

bacteria or fungi hereas fungal cells do not have. !. #uman and fungal cells have similar cell all? D. #uman and fungal cells ha!e similar

+n contrast to bacteria hose cell all contains ribosomes' (hereas bacterial /eptidogl"can. ribosomes are different.

12*. The follo ing statements concerning endotoxins are correct? except: . The" are less potent Gie.? less acteive C. They bind to specific cell receptors' on eight basisH than exotoxins. (hereas e$oto$ins do not. !. The" are more heat stable than exotoxins. (. The" are part of the bacterial cell all?

hereas exotoxins are not.12 . The main host defense against bacterial exotoxins is: . ctivated macrophages secreting proteases 0. #elper@ T cells B. )g* and )g antibodies (. )odulation of host cell receptors in

response to the toxin124. The follo ing events involve recombination of (< ? except: . Transduction of a chromosomal gene 0. +ntegration of a temperate bacteriophage !. Transposition of a mobile genetic element D. Conjugation' such as the transfer of a + ,resistance- factor127. The follo ing statements about the normal flora are correct? except: . The most common organism found on the skin 0. 0olon is the ma5or site here

is Staph"lococcus epidermis. bacteroides fragilis can be found. B. Escherichia coli is a normal flora (.


11/25

MICROBIOLOGY 2010

!. Tetanus toxin (. Toxic shock s"ndrome toxin1$ . +nhibits the release of inhibitor" neurotransmitters causing muscle spasms . (iphtheria toxin 0. !otolinum toxin E. 0holera toxin B. Tetanus to$in (. Toxic shock s"ndrome toxin1$4. n outbreak of sepsis causes b" Staph"lococcus aureus has occurred in the ne bornnurser". Jou are called investigate. ccording to "our kno ledge of the normal flora? hat is themost likel" source of the bacteriaF . 0olon 0. Throat B. 0ose (. ,agina1$7. The follo ing organisms are recogni3ed causes of diarrhea? except: A. Clostridium perfringens 0. Escherichia coli

!. Streptococcus fecalis (. ,ibrio cholera1$8. patient has subacute bacterial endocarditis? hich is caused b" a member of the viridiansgroup of Streptococcus. Chich of the follo ing sites is most likel" to be source of the organismF . Skin C. 1ropharyn$ !. 0olon (. -rethra1$ . The coagulase test? herein the bacteria causes plasma to clot is used to distinguish: . Streptococcus p"ogenes from C. Staphylococcus aureus from

Streptococcus faecalis staphylococcus epidermidis !. Streptococcus p"ogenes from (. Staph"lococcus epidermidis from

Streptococcus aureus


12/25

MICROBIOLOGY 2010

. Streptococcus faecalis B. 2seudomonas aeruginosa 0. /roteus vulgaris (. Escherichia coli1*4. Chich of the follo ing organisms is most likel" to be the cause of pneumonia in animmunocompetent patient. .


13/25

MICROBIOLOGY 2010

the (< of the host cell.1 8. #erpes simplex virus A. D0A en!eloped !irus 0. < enveloped virus E. ,iriod !. (< non@ enveloped virus (. < non@ enveloped virus1 . #uman T@ cell leukemia virus . (< enveloped virus C. +0A en!eloped !irus E. ,iriod !. (< non@ enveloped virus (. < non@ enveloped virus14;. #uman papillomavirus . (< enveloped virus 0. < enveloped virus E. ,iriod B. D0A non" en!eloped !irus (. < non@ enveloped virus141. otavirus . (< enveloped virus 0. < enveloped virus E. ,iriod !. (< non@ enveloped virus D. +0A non" en!eloped !irus142. The follo ing pathogens are likel" to establish chronic or latent infections? except: . 0"tomegalovirus B. #epatitis A !irus 0. #epatitis ! virus (. #erpes simples virus14$. Chich of the follo ing strategies is most likel" to induce lasting intestinal mucosalimmunit" to poliovirusF . /arenteral GintramuscularH administration 0. /arenteral administration of live vaccine of inactivated vaccine D. 1ral administration of li!e !accine !. Oral administration of poliovirus immunoglobulin14*. The follo ing clinical s"ndrome are associated ith infection b" picornavirus? except: . )"ocarditisK/ericarditis !. #epatitis C. ononucleosis (. )eningitis14 . The follo ing statements concerning human rabies vaccine are correct? except: A. The !accine caontains li!e' attenuated 0. Chen the vaccine is used for post@

rabies !irus. exposure proph"laxis? rabies immune !. +f the patient as bitten b" a ild animal such as globulin must also be given. Skunk? the rabies vaccine must be given. (. The virus in the vaccine is gro n in

human cell cultures thus decreasingthe risk of allergic encephalom"elitis.

144. The follo ing statements about #epatitis are correct? except: . The initial site of viral replication is the C. )solating the !irus in a cell culture usually gastrointestinal tract. ma/es diagnosis of hepatitis A. !. #epatitis virus commonl" causes (. Aamma globulin is used to prevent the

as"mptomatic infection in children. disease in exposed persons.147. +t is implicated as the cause of carcinoma of the cervix. . #epatitis 0 virus C. #uman papilloma !irus E. St. 9ouis encephalitis virus !. 0"tomegalovirus (. (engue virus148. Cild birds are important reservoirs of this virus.

. #epatitis 0 virus 0. #uman papilloma virus E. St. Louis encephalitis !irus !. 0"tomegalovirus (. (engue virus14 . +t is important cause of pneumonia in immunocompromised patients. . #epatitis 0 virus 0. #uman papilloma virus E. St. 9ouis encephalitis virus B. Cytomegalo!irus (. (engue virus17;. (onated blood containing antibod" to this < virus should not be used for transfusion. A. #epatitis C !irus 0. #uman papilloma virus E. St. 9ouis encephalitis virus !. 0"tomegalovirus (. (engue virus


14/25

MICROBIOLOGY 2010

171. +t causes hemorrhagic fever that can be life threatening. . #epatitis 0 virus 0. #uman papilloma virus E. St. 9ouis encephalitis virus !. 0"tomegalovirus D. Dengue !irus172. ,irus lack all of the follo ing organelles? except: . )itochondria !.


15/25

MICROBIOLOGY 2010

A. #eterotrophs !. utotrophs 0. 0hemoautotrophs (. /hotoautotrophs188. The stage in the gro th c"cle of bacteria that reflects the period during hich vigorousmetabolic activit" occurs but cells do not divide is the: . Stationar" phase !. 9og phase C. Lag phase (. (eath phase18 . The time re=uired for a cell to divide or a population to double is kno n as: . Thermal death time !. Aro th rate constant C. *eneration time (. Thermal death point1 ;. Chich of the follo ing organism is a predator" bacteriumF . Salmonella th"pinurium C. Bdello!ibrio bacterio!irus !. /seudomonas seruginosa (. 0or"nebacterium diphtheria1 1. Specific nutrients transverse the c"toplasmic membrane of bacteria b": . ctivated transport 0. 0arrier@ mediated transport

!. 6aciliated diffusion D. Any of the abo!e1 2. !acteria that ferment substrates to single end products are called: . #eterofermenters 0. Al"oxalate hunt fermenters B. #omofermenters (. Oxidative fermenters1 $. The primar" natural nutrients of bacteria are: . 0arboh"dratesK


16/25

MICROBIOLOGY 2010

(. 0apsules and spreading factor 2;$. The bacterial toxin that attaches to the pres"naptic terminals of cholinergic nerves? here it

blocks the release of acet"choline? is produced b":. !acillus anthracis

B. Clostridium botulinum0. 0lostridium tetani(. 0or"nebacterium diphtheria

2;*. The bacterial toxin that causes cessation of mammalian proteins"nthesis b" inactivating E6@2 of eukar"otic cells is produced b":

. !acillus anthracis!. 0lostridium botulinum0. 0lostridium tetaniD. Corynebacterium diphtheria

2; . The bacterium that produces a toxin that activates aden"late c"clise? resulting inaccumulation of c"clic )/ in the epithelial cells of the mucosal lining is:A. Escherichia coli!. /seudomonas aeruginosa0. Streptococcus pneumoniae(. Staph"lococcus aureus

2;4. The follo ing statements are true about endotoxins? except:. the" are also kno n as lipopol"saccharides.

!. The" are integral part of the cell alls of gram@negative bacteria.0. The" are normall" not as toxic as bacterial exotoxins.D. Their to$icity can be destroyed by autocla!ing.

2;7. The follo ing structures normall" contain indigenous microbial flora? except:. Teeth !. -rethra C. Bronchi (. Skin

2;8. The region of the bod" that contains the largest population of microbial flora:. Skin !. 0olon 0. ,agina D. outh

2; . ,ancom"cin is produced naturall" from:. Srep.


17/25

MICROBIOLOGY 2010

. /lasmid that codes the penicillinase!. utol"tic en3"mesC. Cellular gro(th rates(. 0ertain c"tochromes

21$.


18/25

MICROBIOLOGY 2010

!. +t is a spore former 0. +t produces a potent exotoxin composed of three antigenicall" distinct thermolabile

proteins.D. )t can li!e inside phagocytic cells.

224. 9isteria monoc"togenes has all of the follo ing characteristics? except:A. )t is a spore former.!. +t is a short? gram@positive rod0. +t can live inside phagoc"tic cells.(. +t is activel" motile.

227. the most important anti@phagoc"tic structure of the Aroup streptococci:A. protein !. Aroup carboh"drate 0. #"aluronic acid capsule (. /rotein

228. The single differentiation test bet een Staph"lococcus epidermidis and Staph"lococcusaureus:

. Aram staining !. 0atalase test C. Coagulase test (. #emol"sis test22 . n example of a streptococcal disease se=uel:

. Scarlet fever !. /har"ngitis 0. /uerperal sepsis D. +heumatic fe!er2$;. The group streptococci serot"pe most commonl" associated ith acute

glomerulonephritis:. 2 !. 7 C. 4% (. 1

2$1. The Streptococcus most commonl" associated ith subacute bacterial endocarditis:. Sterptococcus p"ogenes

!. Sterptococcus agalactiaeC. Viridans streptococci(. Sterptococcus pneumonia

2$2. Chich of the follo ing does not influence the virulence of


19/25

MICROBIOLOGY 2010

2$ . The most important mechanism of transmission of /asteurella multicoda from animals tohumans:

. !lood@sucking arthropods!. 0ontact ith contaminated feces

C. Animal bites and scratches(. 0ontact ith contaminated urineE. #andling of infected tissues

2$4. Chich of the follo ing statements is true about hooping coughF. +nfants under the age of $ months are not susceptible

B. The causati!e organism adheres to ciliated epithelial cells of the upper respiratorytract0. +mmunit" is conferred b" killer T cells that recogni3e cell all ) antigen.(. ll of the above

2$7. Tularemia ma" occur in:. -lderoglandular form

!. Oculoglandular form0. /ulmonar" formD. All of the abo!e

2$8. the intestinal tract is the onl" natural habitat of this lactose fermenting? falcutativeanaerobic? nosocomial pathogen:

. /seudomonas aeruginosa!. /roteus vulgaris0. >leibsiella pneuminiaeD. Escherichia coli

2$ . gram negative? non@motile rod that produces a large mucoid colon" on agar medium asisolated from a chronicall" ill patient ho died of pneumonia. This organism probabl"

belongs to the genus:A. 5lebsiella !. /seudomonas 0. /roteus (. Serratia

2*;. gram@negative rod as isolated from the urine of a patient suspected of having a -T+. Theorganism is lactose negative? urease positive and motile. +t most likel" belongs to the genus:A. proteus !. Escherichia 0. Serratia (. >lebsiella

2*1. 9epros" ma" manifest itself as: . 9epromatous lepros" !. Tuberculoid lepros" C. A and B (. ! and 0

2*2. Secondar" s"philis is characteri3ed b" all of the follo ing? except:. 0utaneous lesions

!. )ucous membrane lesions0. Onset is * eeks or more after chancreD. Absence of spirochetes in the lesions

2*$. The diagnosis of earl" s"philis is best made b":. +noculating guinea pigs ith lesion material and examining blood smears $ da"s later

!. 0ulture on chocolate agar and incubated ith 1;L carbon dioxide


20/25


21/25

MICROBIOLOGY 2010

(H +odamoeba butschliiEH (ientamoeba fragilis

2 *. The chromatoid bodies of this organism appear as cigar@shaped or sausage@shaped: H Entamoeba coli

!H Endolimax nanaC- Entamoeba histolytica

(H +odamoeba butschlii EH (ientamoeba fragilis2 . 0"sts of this organism are usuall" ithout gl"cogen vacuoles G+odine c"stsH: H Entamoeba coli

!H Endolimax nana0H Entamoeba histol"tica

D- )odamoeba butschlii EH (ientamoeba fragilis2 4. +n clinical cases of malaria? the most favorable time to find parasites in the blood is:

A- The period just before a paro$ysm!H t the beginning of a parox"sm0H (uring the late parox"smal stage(H The period 5ust follo ing a parox"sm

2 7. (efinitive host of human malarial parasites: H n" domestic animal B- Anopheles mos3uito 0H )an (H ! and 0

2 8. The sexual c"cle is the: A- Sporogony !H Schi3ogon" 0H Either ! or 0 (H


22/25

MICROBIOLOGY 2010

!H +ngestion of a resistant ooc"st0H +n the bod" of the parasitic nematode

(H +ngestion of infected food24 . The posterior part of this parasite has a t isted appearance:

A- Chilomasti$ mesnili !H Aiardia lamblia 0H Trichomonas hominis (Hetortamonas

244. n axost"le is present in this organism: H /lasmodium vivax !H /lasmodium malariae C- 2lasmodium falciparum (H/lasmodium ovale247. Tropho3oite that resembles %old man&s e"eglasses': H /lasmodium vivax B- 2lasmodium malariae 0H /lasmodium falciparum (H/lasmodium ovale248. This organism has lemon@shaped c"sts:

A- 2lasmodium !i!a$ !H /lasmodium malariae 0H /lasmodium falciparum (H/lasmodium ovale

24 . This causes visceral leishmaniasis: A- Leishmania dono!ani

!H 9eishmania tropica0H 9eishmania bra3iliensis

(H Tr"panosoma cru3i27;. The reservoir host of !alantidium coli infection: H (og !H 0at C- 2ig (H 0attle271. viviparous organism:

H scaris lumbricoides B- Trichenella spiralis 0H #ook orm (H /in orm272. Chich of the follo ing neither la" eggs nor deposits larvae in the intestinal canalF

H #ook orm B- 2in(orm 0H Trichinella spiralis (H Trichuristrichiura27$. %Old orld' hook orm: H


23/25

MICROBIOLOGY 2010

277. The eggs of this organism are most likel" to be found through anal s abs or cellophanetape: A- Enterobius !ermicularis !H Trichuris trichiura 0H scaris lumbricoides (HTrichinella spiralis

278. ,isceral larva migrans is ac=uired b" ingesting eggs of a nematode parasite of: H /ig !H )onke" C- Dog (H 0at27 . 6ilariform larva that can penetrate through the skin: H Enterobius vermicularis !H Strong"loides stercoralis 0H #ook orm (H and !E- B and C28;. 6inding the rhabditiform larva in the stool identifies this organism: H #ook orm !H Chip orm 0H /in orm (H scaris lumbricoides E-Strongyloides stercoralis281. Eggs in the 2@8 cell stage of development often appear in the stool in infections ith H Chip orm B- #oo/(orm 0H /in orm (H 9arge intestinal round orm282. The dog tape orm that can be accidentall" transmitted to humans: H #"menolepsis nana !H #"menolepsis diminuta C- Dipylidium caninum (HTaenia solium28$. The fish tape orm that can be ac=uired b" eating insufficientl" cooked? infected fish: H Taenia solium

!H Taenia saginataC- Dipyllobotrium latum

(H (ip"lidium caninum EH Echinococcus granulosus28*. The adult form of this tape orm has onl" four segments: H Taenia solium

!H Taenia saginata0H (ip"llobotrium latum

(H (ip"lidium caninum E- Echinococcus granulosus28 . The eggs of this orm are operculated: H Taenia solium !H Taenia saginata C- Dipyllobotrium latum (H(ip"lidium caninum284. )an is often infected b" peeling ater chestnuts ith his teeth? hich contain this

organism: H 6asciola hepatica B- asciolopsis bus/i 0H /aragonimus eatermani (H0hlonorchis sinensis287. This causes Eg"ptian hematuria: A- Schistosoma hematobium 0H Schistosoma 5aponicum !H Schistosoma mansoni(H 6asciola hepatica 288. The eggs of this organism has a rudimentar" lateral spine:


24/25

MICROBIOLOGY 2010

H Schistosoma hematobium 0H Schistosoma 5aponicum B- Schistosoma mansoni (H 6asciola hepatica 28 . This organism is ac=uired b" eating infected ra fish: H 6asciola hepatica !H 6asciolopsis buski 0H /aragonimus eatermani D-

Chlonorchis sinensis2 ;. This is also kno n as the Oriental ling fluke: H 6asciola hepatica !H 6asciolopsis buski C- 2aragonimus (eatermani (H0hlonorchis sinensis2 1. The presence of cr"oglobulins in the serum of a patient ma" indicate that the patient has: H nemia B- Circulating immune comple$es 0H #ashimotos&s th"roiditis(H /ernicious anemia2 2. The 0oomb&s test is the most important laborator" method in the diagnosis of:

H )"asthenia gravis!H Autoimmune hemolytic anemia

0H Caldenstrom&s macroglubilemia(H heumatoid arthritis

2 $. The most important antibod" that pla"s a role in the pathogenesis of s"stemic lupuser"thematosus is: H ntibod" th"roglobuin

B- Antibody to D0A 0H ntibod" to mitochondria

(H ntibod" to smooth muscle2 *. +n the s"ndrome of post@streptococcal glomerulonephritis:

H Streptococcal nucleases and streptol"sin accumulate in the glomerular basement

membrane.!H Streptococcal capsular antigen Gh"aluronic acidH and glucoronic acid subunits

precipitate ith antibod" and are deposited in the glomeruli in lump" patterns.C- )mmunoglobulin and complement locali9e in the glomerular basement

membrane.(H #ematuria is due to the action of streptol"sin O.

2 . +n group beta hemol"tic streptococci? the t"pes are determined b" the antigenicspecificit" of:

H 0apsule!H )ucopeptide la"er C- and7or T proteins(H Extracellular products such as streptol"sin O? hich is produced onl" b" group

streptococci2 4. 0ongenital rubella can be diagnosed in a eek@old infant b":

H (emonstration of maternal +g) antibodies against rubella virus!H Testing for #+ antibodies specific for the virus in the infant&s serum

0H (emonstration of circulating +gA antibodies against rubella virusD- Demonstration of rubella )g antibodies in the infant


25/25

MICROBIOLOGY 2010

2 7. 0aesarian section has been found to eliminate neonatal complications due to hich of thefollo ing virusesF H ,aricella@3oster !H 0"tomegalovirus 0H /oliovirus D- #erpes simple$!irus

2 8. (ermatoph"tes that infect special keratini3ed areas of the bod"? skin and nails onl" arelikel" to belong to genus: A-Epidermophyton !H Trichoph"ton 0H )icrosporum (H Trichosporum2 . hapten is a substance that:

H +nduces cellular immune response but not antibod" productionB- Does not induce any immune response (hen gi!en alone but does elicit an

immune response (hen coupled to a larger molecule0H +nduces tolerance hen given alone(H Chen coupled to a larger molecule can be recogni3ed b" ! l"mphoc"tes but not T

l"mphoc"tes$;;. Chich of the follo ing is a characteristic of the %positive strand' < virusF

H The pol"meranse contained in the virion is necessar" in the replication.!H The !irion +0A can act as its o(n messenger +0A .0H The virion < cannot be extracted in an infectious form.(H ,iral messenger < is complementar" to the virion < .

reviewer in microbiology

Documents