Bacilli Characteristics and Examples Quiz

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What distinctive morphology is associated with Vibrio cholera?

Comma shape (correct)

Rod shape

Spherical shape

Hemolytic shape

In which infection can Vibrio cholera be found in unclean water sources and survive high salt concentrations?

Shiga-toxin producing E. coli

E. coli O157:H7

Salmonella

Vibrio cholera (correct)

Which bacterium has a huge animal reservoir and causes disease in humans after ingesting contaminated foods?

Salmonella (correct)

E. coli O157:H7

Vibrio cholera

Shiga-toxin producing E. coli

What is the major virulence factor of Clostridium difficile?

Release of toxin A and toxin B Signup and view all the answers

How does Clostridium difficile affect the colon when causing disease?

It results in malignant toxic megacolon Signup and view all the answers

Which bacterial infection is characterized by the release of tetanospasmin causing spastic paralysis?

Clostridium tetani infection Signup and view all the answers

In which condition would you expect the passage of bacterial spores through open wounds into the body?

Clostridium tetani infection Signup and view all the answers

What is the major cause of urinary tract infection, responsible for over 90% of UTI cases among women?

Escherichia coli Signup and view all the answers

Which bacteria can cause sepsis and septic shock through the release of lipopolysaccharide molecules?

Pseudomonas aeruginosa Signup and view all the answers

Which bacterium is known for causing whopping cough, inducing severe inflammation of the respiratory tract?

Bordetella pertussis Signup and view all the answers

Which bacterium is a common inhabitant of the human gastrointestinal tract and can lead to systemic infections like bacteremia and endocarditis?

Bacteroides Signup and view all the answers

Which bacterial infection is associated with hemolytic uremic syndrome, a condition characterized by the destruction of red blood cells and acute kidney failure?

Escherichia coli Signup and view all the answers

Which bacterium is unique among the Gram negative bacilli group for being non-motile?

Haemophilus Signup and view all the answers

Which bacterium causes a severe inflammation in the gastrointestinal tract leading to perfuse watery diarrhea and, if untreated, mucus and blood in the stool?

Shigella Signup and view all the answers

Which bacterium causes pneumonia and meningitis, and is vaccine preventable?

H. influenzae Signup and view all the answers

Which bacterium is known for causing chancroid and can be transmitted sexually?

Haemophilus ducreyi Signup and view all the answers

Which bacterium primarily inhabits the soil and can cause a variety of infections, including food poisoning?

Bacillus Signup and view all the answers

Which bacterium causes flaccid paralysis by inhibiting the release of acetylcholine?

Clostridium botulinum Signup and view all the answers

What is the major virulence factor of Listeria monocytogenes?

Listeriolysin Signup and view all the answers

Which bacterium causes a disease characterized by pseudomembrane formation in the respiratory tract?

Corynebacterium diphtheriae Signup and view all the answers

Which bacteria are irregular in shape and stain positive with an acid-fast stain due to MYCOLIC acid cell wall?

Mycobacteria Signup and view all the answers

Which bacterium can contaminate food, causing gastrointestinal symptoms, and primarily affects immunocompromised patients?

Listeria monocytogenes Signup and view all the answers

Which of the following Gram negative bacilli is known for causing severe diarrheal illness through the release of enterotoxins and is endemic in regions with poor sanitation?

Escherichia coli Signup and view all the answers

What is the major antigen of Gram negative bacilli that elicits an immune reaction?

H antigen Signup and view all the answers

Which Gram negative bacillus is associated with causing cholera-like symptoms due to its ability to produce a potent enterotoxin that leads to severe watery diarrhea?

Vibrio Signup and view all the answers

Which of the following Gram negative bacilli is known for causing hemolytic uremic syndrome (HUS) in infected individuals, especially in cases involving contaminated food?

Salmonella Signup and view all the answers

Which characteristic of Gram negative bacilli enables them to resist phagocytosis by the immune system?

O antigen Signup and view all the answers

What is the primary site of infection by Nocardia?

Skin Signup and view all the answers

Which enzyme acts as a major virulence factor in Nocardia infections?

Superoxide dismutase Signup and view all the answers

How does leprosy typically disseminate to the nerves, eyes, and lungs?

By inhalation of aerosolized particles Signup and view all the answers

Which bacterial infection presents a high risk of dissemination to blood or other organs, especially in immunocompromised patients?

Nocardia infection Signup and view all the answers

What is the major similarity between Nocardia and TB in terms of their cell wall composition?

Presence of mycolic acid Signup and view all the answers

Which bacterial infection primarily starts in skin and mucous membranes before disseminating to other organs?

Nocardia infection Signup and view all the answers

How do aerobically growing bacteria like Nocardia counteract reactive oxygen species?

Producing superoxide dismutase enzyme Signup and view all the answers

Bacilli Characteristics and Examples Quiz

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Questions and Answers

What distinctive morphology is associated with Vibrio cholera?

In which infection can Vibrio cholera be found in unclean water sources and survive high salt concentrations?

Which bacterium has a huge animal reservoir and causes disease in humans after ingesting contaminated foods?

What is the major virulence factor of Clostridium difficile?

How does Clostridium difficile affect the colon when causing disease?

Which bacterial infection is characterized by the release of tetanospasmin causing spastic paralysis?

In which condition would you expect the passage of bacterial spores through open wounds into the body?

What is the major cause of urinary tract infection, responsible for over 90% of UTI cases among women?

Which bacteria can cause sepsis and septic shock through the release of lipopolysaccharide molecules?

Which bacterium is known for causing whopping cough, inducing severe inflammation of the respiratory tract?

Which bacterium is a common inhabitant of the human gastrointestinal tract and can lead to systemic infections like bacteremia and endocarditis?

Which bacterial infection is associated with hemolytic uremic syndrome, a condition characterized by the destruction of red blood cells and acute kidney failure?

Which bacterium is unique among the Gram negative bacilli group for being non-motile?

Which bacterium causes a severe inflammation in the gastrointestinal tract leading to perfuse watery diarrhea and, if untreated, mucus and blood in the stool?

Which bacterium causes pneumonia and meningitis, and is vaccine preventable?

Which bacterium is known for causing chancroid and can be transmitted sexually?

Which bacterium primarily inhabits the soil and can cause a variety of infections, including food poisoning?

Which bacterium causes flaccid paralysis by inhibiting the release of acetylcholine?

What is the major virulence factor of Listeria monocytogenes?

Which bacterium causes a disease characterized by pseudomembrane formation in the respiratory tract?

Which bacteria are irregular in shape and stain positive with an acid-fast stain due to MYCOLIC acid cell wall?

Which bacterium can contaminate food, causing gastrointestinal symptoms, and primarily affects immunocompromised patients?

Which of the following Gram negative bacilli is known for causing severe diarrheal illness through the release of enterotoxins and is endemic in regions with poor sanitation?

What is the major antigen of Gram negative bacilli that elicits an immune reaction?

Which Gram negative bacillus is associated with causing cholera-like symptoms due to its ability to produce a potent enterotoxin that leads to severe watery diarrhea?

Which of the following Gram negative bacilli is known for causing hemolytic uremic syndrome (HUS) in infected individuals, especially in cases involving contaminated food?

Which characteristic of Gram negative bacilli enables them to resist phagocytosis by the immune system?

What is the primary site of infection by Nocardia?

Which enzyme acts as a major virulence factor in Nocardia infections?

How does leprosy typically disseminate to the nerves, eyes, and lungs?

Which bacterial infection presents a high risk of dissemination to blood or other organs, especially in immunocompromised patients?

What is the major similarity between Nocardia and TB in terms of their cell wall composition?

Which bacterial infection primarily starts in skin and mucous membranes before disseminating to other organs?

How do aerobically growing bacteria like Nocardia counteract reactive oxygen species?

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