Microbiology Chapter 23 Review Questions Flashcards Quizlet PDF

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Microbiology Chapter 23 Review Questions

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Microbiology Chapter 23 Review Questions 8 studiers in the last day

Terms in this set (45) Which of the follwoing is

c. liver

NOT apart of the gastrointestinal tract: a. stomach b. colon c. liver d. mouth The major portion of food

c. small intestine

digestion occurs in the: a. mouth b. stomach c. small intestine d. large intestine The majority of microbes composing the normal microbiota of the GI tract are in the genus: a. bacteroides b. Escherichia c. Clostridium d. Staphylococcus

a. bacteroides

Microbiology Chapter 23 Review Questions of tooth decay becuase they: a. are acidic and destroy tooth enamel b. are acidic and destroy gingiva c. are converted to acids by bacteria; the acid then destroys tooth enamel d. are converted to acids by bacteria; the acid then detsroys the gingiva

Which of the following is a virulence factor important to Helicobacter pylori during the formation of ulcers: a. type III secretion system b. capsule formation c. flagella d. spore formation

c. flagella

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Microbiology Chapter 23 Review Questions pylori by: a. increasing acid production by cells lining the stomach b. neutralizing acid produced by cells lining the stomach c. degrading mucus producing cells d. preventing destruction of H. pylori following phagocytosis

Which causative agent of

a. campylobacter

bacterial gastroenteritis is most commonly seen by doctors in the US: a. campylobacter b. vibrio cholerae c. salmonella serotype typhi d. shigella spp Fever blisters are most often caused by: a. HBV b. HCV c. HHV-1 d. HHV-2

c. HHV-1

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Microbiology Chapter 23 Review Questions are due to: a. destruction of liver cells by virus b. cellular immune reactions against infected liver cells c. exotoxin production d. endotoxin production

One of the more common

c. giardiasis

waterbourne gastrointestinal diseases seen in the US is: a. amebiasis b. E. coli O157:H7 c. giardiasis d. salmonellosis Which of the following diseases is an indicator disease signaling that an HIV - positive individual has progressed to AIDS: a. amebiasis b. cryptosporidiosis c. pinworm d. shigellosis

b. cryptosporidiosis

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Microbiology Chapter 23 Review Questions b. protozoan c. cestode d. nematode

Which microbial group

a. bacteria

contributes the greatest number of causative agents to overall digestive tract diseases in the United States: a. bacteria b. helminths c. protozoa d. viruses Typhoid fever is caused by

d. salmonellosis

a genus of bacteria that also causes: a. cholera b. cryptosporidiosis c. mumps d. salmonellosis Frothy, greasy diarrhea is caused by: a. Eshcherichia b. Salmonella c. Giardia d. Helicobacter

c. Giardia

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Microbiology Chapter 23 Review Questions :but does not" contribute to periodontal disease.

T/F: "Stress" contributes to

FALSE: H. pylori

the formation of peptide ulcers. T/F: Campylobacter jejuni

TRUE

and E. coli are both causative agents of gastroenteritis, but only E. coli is an example of a "coliform". T/F: Proper treatment of

TRUE

most forms of gastroenteritis "does not require" firm laboratory confirmation and identification of the causative agent. T/F: Viral gastroenteritis is generally "more severe" than bacterial gastroenteritis.

FALSE: less severe

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Microbiology Chapter 23 Review Questions "HBV infection". T/F: Giardiasis is a common

FALSE: protozoan

"bacterial" infection of the digestive tract. T/F: Cryptosporidosis has

TRUE

"been proven" to affect humans as well as livestock. T/F: Vaccines are available

FALSE: Hepatitis A

against Hepatitis B and "Hepatitis C" T/F: Vibrio cholerae forms

TRUE

biofilms in "seawater" but NOT in "freshwater". Teeth are composed of

1. enamel

three main layers, a hard

2. dentin

layer called ________

3. pulp

overlying the softer _________ and the inner _______ The most common

Streptococcus mutans (viridans

bacterium involved in

streptocuccus)

cavity formation is ______

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