Microbial Digestive System Diseases

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What is the primary source of food for microbes in plaque?

Tooth enamel

Dentin and pulp

Periodontal ligaments

Dietary sugar (correct)

What is the result of anaerobic fermentation of sugars by microbes in plaque?

Stimulation of periodontal ligaments

Acid production that dissolves tooth enamel (correct)

Production of oxygen

Formation of tartar

What is the primary cause of tooth loss in dental caries?

Periodontal disease

Gingivitis

Dentin destruction

Destroyed dentin, pulp, and nerves (correct)

What is the initial form of periodontal disease?

Gingivitis Signup and view all the answers

What triggers the development of gingivitis?

Tartar trapped at the base of the teeth Signup and view all the answers

What is the result of the inflammatory response in gingivitis?

Formation of pockets that separate the gingiva from the tooth Signup and view all the answers

What is the principal function of the digestive system?

To absorb ingested nutrients and eventually excrete waste products Signup and view all the answers

Which of the following structures is NOT part of the GI tract?

Salivary glands Signup and view all the answers

What is the main function of the liver in the digestive system?

To produce bile Signup and view all the answers

What is the primary function of the mucus membrane in the digestive system?

To prevent entry of microbes into the bloodstream Signup and view all the answers

What is the name of the disease characterized by the appearance of holes or pits in the teeth?

Dental caries Signup and view all the answers

Which of the following bacteria is commonly found in the human oral cavity, upper GI tract, and colon?

Streptococcus mutans Signup and view all the answers

What is the term for the sticky, insoluble polysaccharide produced by Streptococcus mutans?

Dextran Signup and view all the answers

What is the name of the disease characterized by inflammation of the gums?

Gingivitis Signup and view all the answers

What is the term for the structures that surround the teeth and are affected by periodontal disease?

Periodontal tissue Signup and view all the answers

What is the primary function of the proteases produced by Porphyromonas gingivalis?

To break down gingival tissue Signup and view all the answers

How often should teeth be brushed with fluoride-containing toothpaste to prevent mutans from growing?

At least 2x a day Signup and view all the answers

What are the symptoms of peptic ulcers?

Abdominal pain, nausea, vomiting, weight loss, and black/tar-like stools Signup and view all the answers

What is the shape of the bacteria that causes peptic ulcers?

Helical Signup and view all the answers

What is the function of urease in Helicobacter pylori?

To produce ammonia that neutralizes stomach acid Signup and view all the answers

What is the function of flagella in Helicobacter pylori?

To enable burrowing through stomach mucus lining Signup and view all the answers

What is the function of adhesins in Helicobacter pylori?

To facilitate attachment to gastric cells Signup and view all the answers

Which of the following bacteria is responsible for typhoid fever?

Salmonella typhi Signup and view all the answers

What is the primary cause of bacterial gastroenteritis?

All of the above Signup and view all the answers

What is the symptoms of cholera?

All of the above Signup and view all the answers

What is the primary virulence factor of Vibrio cholerae?

Cholera toxin Signup and view all the answers

What is the treatment for cholera?

All of the above Signup and view all the answers

How is Salmonella transmitted?

All of the above Signup and view all the answers

What is the most common complication of cholera?

Dehydration Signup and view all the answers

What is the primary cause of Shigella infection?

Fecal-oral transmission Signup and view all the answers

What is the epidemiology of cholera?

Cholera is endemic in more than 47 countries Signup and view all the answers

What is the goal of the WHO's plan to combat cholera?

Reduce cholera cases by 90% by 2030 Signup and view all the answers

What is a characteristic of Clostridium difficile?

Gram (+) endospore forming anaerobic bacillus Signup and view all the answers

What is a virulence factor of Campylobacter?

Allows colonization and invasion of the jejunum, ileum, and colon Signup and view all the answers

What is the main source of human infection with Campylobacter?

Chickens and other domestic poultry Signup and view all the answers

What is a characteristic of Pseudomembranous colitis?

More than 10 bloody stools per day Signup and view all the answers

How is Campylobacter Diarrhea typically diagnosed?

Based on signs and symptoms Signup and view all the answers

How can Campylobacter Diarrhea be prevented?

Through proper hygiene after handling raw poultry Signup and view all the answers

Microbial Digestive System Diseases

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Questions and Answers

What is the primary source of food for microbes in plaque?

What is the result of anaerobic fermentation of sugars by microbes in plaque?

What is the primary cause of tooth loss in dental caries?

What is the initial form of periodontal disease?

What triggers the development of gingivitis?

What is the result of the inflammatory response in gingivitis?

What is the principal function of the digestive system?

Which of the following structures is NOT part of the GI tract?

What is the main function of the liver in the digestive system?

What is the primary function of the mucus membrane in the digestive system?

What is the name of the disease characterized by the appearance of holes or pits in the teeth?

Which of the following bacteria is commonly found in the human oral cavity, upper GI tract, and colon?

What is the term for the sticky, insoluble polysaccharide produced by Streptococcus mutans?

What is the name of the disease characterized by inflammation of the gums?

What is the term for the structures that surround the teeth and are affected by periodontal disease?

What is the primary function of the proteases produced by Porphyromonas gingivalis?

How often should teeth be brushed with fluoride-containing toothpaste to prevent mutans from growing?

What are the symptoms of peptic ulcers?

What is the shape of the bacteria that causes peptic ulcers?

What is the function of urease in Helicobacter pylori?

What is the function of flagella in Helicobacter pylori?

What is the function of adhesins in Helicobacter pylori?

Which of the following bacteria is responsible for typhoid fever?

What is the primary cause of bacterial gastroenteritis?

What is the symptoms of cholera?

What is the primary virulence factor of Vibrio cholerae?

What is the treatment for cholera?

How is Salmonella transmitted?

What is the most common complication of cholera?

What is the primary cause of Shigella infection?

What is the epidemiology of cholera?

What is the goal of the WHO's plan to combat cholera?

What is a characteristic of Clostridium difficile?

What is a virulence factor of Campylobacter?

What is the main source of human infection with Campylobacter?

What is a characteristic of Pseudomembranous colitis?

How is Campylobacter Diarrhea typically diagnosed?

How can Campylobacter Diarrhea be prevented?

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