1) which of the following is directly involved in the initiation of dentist caries?

A) sucrose

B) lysozyme

C) lactic acid


2) Clostridium difficile-associated diarrhea is usually preceded by

A) eat contaminated food.

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B) a blood transfusion.

C) extended use that antibiotics.


3) which of the adhering to statements around salmonellosis is FALSE?

A) the is a bacterial infection.

B) Severity of disease depends on number of organisms ingested.

C) A healthy and balanced carrier state exists.

D) The mortality price is high.


4) Disease-causing exotoxins are produced by every one of the following organisms EXCEPT

A) Clostridium perfringens.

B) Vibrio cholerae.

C) Shigella dysenteriae.


5) Which among the following conditions of the gastrointestinal system istransfer by the respiratory tract route?

A) staphylococcal enterotoxicosis

B) mumps

C) Vibrio gastroenteritis


6) The digestive tract is essentially one lengthy tube. The order of the structures, start with the mouth, is

A) pharynx, esophagus, stomach, small intestine, large intestine.

B) esophagus, pharynx, stomach, little intestine, big intestine.

C) pharynx, esophagus, stomach, huge intestine, small intestine.


7) i beg your pardon of the adhering to helminthic illness is a common infestation discovered in the southeastern unified States?

A) Enterobius vermicularis

B) Ascaris lumbricoides

C) Taenia saginata


8) Poultry assets are a likely resource of epidemic by

A) Helicobacter pylori.

B) Salmonella enterica.

C) Vibrio cholerae.


9) every one of the following infections can result from drinking contaminated water EXCEPT

A) Cyclospora infection.

B) giardiasis.

C) trichinellosis.


10) i beg your pardon of the following organisms feeds ~ above red blood cells?

A) Giardia lamblia

B) Escherichia coli

C) Taenia spp.

D) Vibrio parahaemolyticus

E) Entamoeba histolytica


11) In humans, beef tapeworm infestations are acquired by ingesting

A) the egg of Taenia saginata.

B) segment of Taenia solium tapeworms.

C) water contaminated through Diphyllobothrium latum eggs.

D) cysticerci that Taenia saginata in undercooked meat.


12) i m sorry of the following statements around staphylococcal food poisoning is FALSE?

A) that is resulted in by eat an enterotoxin.

B) It can be impede by adequate refrigeration of food.

C) It have the right to be prevented by heating foodstuffs to 50°C for 15 minutes.


13) The many common reason of traveler"s diarrhea is

A) Shigella spp.

B) Salmonella enterica.

C) Giardia lamblia.

D) Escherichia coli.


14) Acute gastroenteritis the occurs after ~ an incubation duration of two to three days and also commonly affects children is probably brought about by

A) Giardia.

B) rotavirus.

C) Salmonella.


15) i beg your pardon of the complying with is mismatched?

A) hydatid an illness — people are the critical host

B) Taenia infestation — people are the definitive host

C) trichinellosis — humans eat larva that parasite


16) Thorough cooking of food will prevent all of the complying with EXCEPT

A) trichinellosis.

B) beef tapeworm.

C) staphylococcal food poisoning.


17) most of the common microbiota that the digestive system are uncovered in the

A) mouth.

B) stomach.

C) stomach and tiny intestine.

D) tiny intestine and big intestine.


18) Gums bleeding while to brush one"s this is most commonly connected with

A) halitosis.

B) cavities.

C) gingivitis.


19) Typhoid heat differs from salmonellosis in that in typhoid fever

A) the microorganisms multiply within macrophages.

B) the incubation duration is lot longer.

C) the symptom are as result of infection of the gallbladder.


20) which of the following organisms is likely to it is in transmitted via contaminated shrimp?

A) Trichinella spiralis

B) Vibrio parahaemolyticus

C) Giardia lamblia


21) which of the complying with organisms is likely to it is in transmitted via undercooked pork and horse?

A) Salmonella enterica

B) Staphylococcus aureus

C) Trichinella spiralis


22) A vaccine come provide active immunity come HBV is all set from

A) viruses grown in organization culture.

B) genetically modified yeast.

C) pooled gamma globulin.


23) Aflatoxin is a(n) ________ associated with gulp down of contaminated ________.

A) mycotoxin; peanuts

B) mycotoxin; rye or other cereal grains

C) enterotoxin; peanuts


24) i m sorry of the following reasons inflammation the the liver?

A) Salmonella enterica

B) Shigella spp.

C) hepatitis A virus


26) Epidemics pertained to bacterial infection of the digestive device are commonly caused by

A) biological vectors.

B) contaminated food and water.

C) unpasteurized milk.


27) many bacterial epidemic of the lower digestive tract space treated with

A) antitoxin.

B) penicillin.

C) water and also electrolytes.


29) i m sorry of the complying with is mismatched?

A) ergot — gangrene

B) Salmonella endotoxin — lyses red blood cells

C) Vibrio enterotoxin — cheap of Cl-, K+, and also H2O


30) bacterial intoxications differ from bacter infections the the digestive device in that intoxications

A) are transmitted via contaminated water.

B) are an ext severe.

C) have shorter incubation times.


31) The most typical mode the HAV infection is

A) air pollution of food throughout preparation.

B) air pollution of food prior to it get a food business establishment.

C) blood transfusion.


32) i m sorry of the complying with correctly perform the stages of this decay?

A) plaque accumulation, damage of enamel, breakthrough of degeneration through enamel, decay in dentin, degeneration in tooth pulp

B) degeneration in dentin, plaque accumulation, damage of enamel, breakthrough of degeneration through enamel, degeneration in this pulp

C) plaque accumulation, damage of enamel, decay in tooth pulp, advance of degeneration through enamel, decay in dentin


33) A 38-year-old man had actually onset of fever, chills, nausea, and also myalgia if vacationing ~ above the Gulf that Mexico. On April 29, he had consumed raw oysters and also gone wading in the warm seaside waters. On might 2, he to be admitted to a hospital since of a heat of 39°C and two circular necrotic lesions ~ above the left leg. He had a background of alcoholic liver disease. The was transferred to the ICU; therapy with antibiotics to be initiated. On may 4, that died. I m sorry of the following is the most most likely cause?

A) Bacillus cereus

B) Cyclospora cayetanensis

C) Salmonella typhi

D) Vibrio vulnificus


D


34

34) i m sorry of the complying with is consisted of in GALT?

A) thymus

B) Peyer"s patches

C) tonsils


B


35

35) microscope examination that a patient"s fecal society shows spiral bacteria. The bacteria most likely belong come the genus

A) Campylobacter jejuni.

B) Escherichia coli.

C) Salmonella typhi.


A


36

36) i m sorry of the following pertains to typhoid fever?

A) the is obtained via gulp down of contaminated meat.

B) Enterotoxin spreads via the blood.

C) the is caused by several different species of Salmonella.

D) Causative pathogen multiplies in patience phagocytes.


D


37

37) all of the complying with are gram-negative rods that cause gastroenteritis EXCEPT

A) Clostridium perfringens.

B) Escherichia coli.

C) Salmonella typhi.


A


38

38) Helicobacter pylori can prosper in the stomach due to the fact that it

A) hides in macrophages.

B) provides a capsule.

C) possesses an enzyme that neutralizes HCl.


C


39

39) all of the complying with are eukaryotic organisms that cause diarrheal an illness EXCEPT

A) Cryptosporidium.

B) Cyclospora.

C) Entamoeba.

D) Giardia.

E) Campylobacter.


E


40

40) all of the complying with pertain come pinworm epidemic EXCEPT

A) infection is commonly by contact with fomites or inhalation that eggs.

B) diagnosis is by detecting eggs on transparent tape pressed to the perianal area.

C) all family members living through the patient must likewise be treated.

D) the is most commonly transmitted by cysts in water.


D


41

41) What is a Dane particle?

A) the chlorine-resistant virus that reasons HAV

B) the contagious virion that causes HBV

C) the spherical particles discovered in serum that patients through HBV


B


42

42) i beg your pardon of the complying with is mismatched?

A) beef — E. Coli O157:H7

B) custard and also cream pies Staphylococcus aureus

C) eggs — Trichinella spiralis


C


43

Following a county fair, 160 persons complained of gastrointestinal symptoms. Symptoms had diarrhea (84 percent), abdominal cramps (96 percent), nausea (84 percent), vomiting (82 percent), body aches (50 percent), heat (60 percent; median body temperature = 38.3°C); typical duration of condition 6 job (range 10 hr come 13 days).

43) In situation 25.1, fecal samples need to be cultured for every one of the complying with EXCEPT

A) Salmonella enterica.

B) Shigella spp.

C) Campylobacter jejuni.

D) enteropathogenic Escherichia coli.

E) Giardia lamblia.


E


44

44) In case 25.1, fecal samples were discovered to be negative when cultured. The following step in diagnosing the cause of condition would be

A) to start antibiotic therapy.

B) blood cultures.

C) microscope examination that feces because that oocysts.


C


45
*

45) The relative dangers shown in Table 25.1 to be calculated for foods suspected the transmitting Salmonella. Which food is the many likely source of infection?

A) black beans

B) corn soup

C) jalapeño peppers


C


46

1) Campylobacter gastroenteritis is the leading reason of foodborne condition in the united States.


TRUE


47

2) dentist caries can additionally be referred to as periodontal disease.


FALSE


48

3) bacterial infections, however not intoxications, can cause diarrhea.


FALSE


49

4) break out of viral gastroenteritis occurs in a pediatrics ward. Rotavirus is the most likely causative agent.


TRUE


50

5) Aflatoxin poisoning is connected with liver cancer.


TRUE


51

6) approximately 30 percent that the body"s immune device is situated in the minister tract.


FALSE


52

7) Lactic acid, an finish product of fructose fermentation, causes breakdown of tooth enamel and, eventually, cavities.


TRUE


53

8) Gastroenteritis because of ingestion of food contaminated with Staphylococcus aureus is because of intoxication by enterotoxins.


TRUE


54

9) EHEC is a significant cause the diarrhea in emerging countries and may an outcome in the fatality of little children.

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FALSE


55

10) H. Pylori is able to endure the acidic environment of the stomach together a result of adaptations that enable it to rise the pH of the immediate environment.