Enterobacteriaciae

Question 1

What type of bacteria is Escherichia coli commonly known as?

Answer 1

E. coli

Question 2

True or False: Salmonella can cause foodborne illness.

Answer 2

True

Question 3

Fill in the blank: Shigella is primarily transmitted through __________.

Answer 3

fecal-oral route

Question 4

Which species of Yersinia is known to cause the plague?

Answer 4

Yersinia pestis

Question 5

Klebsiella pneumoniae is often associated with which type of infections?

Answer 5

Pneumonia

Question 6

What is the primary laboratory test used to identify Salmonella?

Answer 6

Culture on selective media

Question 7

True or False: Serratia marcescens is known for producing a red pigment.

Answer 7

True

Question 8

What is the primary mode of transmission for Yersinia enterocolitica?

Answer 8

Contaminated food or water

Question 9

Fill in the blank: Citrobacter species are often found in the __________ tract.

Answer 9

intestinal

Question 10

What is a common symptom of an E. coli infection?

Answer 10

Diarrhea

Question 11

Multiple choice: Which of the following is NOT a common type of Salmonella? A) Salmonella Typhimurium B) Salmonella Enteritidis C) Salmonella Pneumonia D) Salmonella Heidelberg

Answer 11

C) Salmonella Pneumonia

Question 12

What is the significance of Shiga toxin produced by some E. coli strains?

Answer 12

It can cause severe gastrointestinal illness and hemolytic uremic syndrome.

Question 13

True or False: Klebsiella is resistant to many antibiotics.

Answer 13

True

Question 14

Fill in the blank: The primary infection associated with Shigella is __________.

Answer 14

bacillary dysentery

Question 15

What laboratory method is commonly used to identify Yersinia pestis?

Answer 15

Biphasic culture or serologic tests

Question 16

Multiple choice: Which of the following is a common source of Serratia infections? A) Contaminated water B) Soil C) Hospital equipment D) All of the above

Answer 16

D) All of the above

Question 17

What are the main reservoirs for Salmonella species?

Answer 17

Animals, especially poultry and reptiles

Question 18

True or False: Citrobacter can cause opportunistic infections in immunocompromised patients.

Answer 18

True

Question 19

Fill in the blank: The primary treatment for severe E. coli infections may include __________.

Answer 19

supportive care

Question 20

What is the primary virulence factor of Yersinia pestis?

Answer 20

Plasmid-encoded virulence factors

Question 21

Multiple choice: Which type of E. coli is associated with urinary tract infections? A) EHEC B) ETEC C) UPEC D) EAEC

Answer 21

C) UPEC

Question 22

What symptoms are commonly associated with Salmonella infection?

Answer 22

Fever, diarrhea, abdominal cramps

Question 23

True or False: Shigella infections are typically self-limiting.

Answer 23

True

Question 24

Fill in the blank: Klebsiella species can produce __________, which contributes to antibiotic resistance.

Answer 24

extended-spectrum beta-lactamases (ESBLs)

Question 25

What is a common diagnostic test for Shigella?

Answer 25

Stool culture

Question 26

Multiple choice: Which of the following bacteria is known for its ability to survive in harsh environments? A) E. coli B) Yersinia C) Klebsiella D) Serratia

Answer 26

C) Klebsiella

Question 27

What type of toxin is produced by some strains of Shigella?

Answer 27

Shiga toxin

Question 28

True or False: Serratia is primarily a human pathogen.

Answer 28

False

Question 29

Fill in the blank: Citrobacter freundii can cause __________ infections.

Answer 29

urinary tract

Question 30

What is the transmission route for E. coli O157:H7?

Answer 30

Contaminated food or water

Question 31

Multiple choice: Which organism is commonly associated with gastroenteritis? A) Shigella B) Yersinia C) Citrobacter D) All of the above

Answer 31

D) All of the above

Question 32

What is the mechanism of action of Shiga toxin?

Answer 32

Inhibits protein synthesis in host cells

Question 33

True or False: Yersinia enterocolitica can mimic appendicitis.

Answer 33

True

Question 34

Fill in the blank: The primary habitat of Klebsiella is __________.

Answer 34

soil and water

Question 35

What is a key feature of Serratia marcescens in the lab?

Answer 35

It produces a characteristic red pigment.

Question 36

Multiple choice: Which bacterium is known for its lactose fermentation ability? A) E. coli B) Salmonella C) Shigella D) Yersinia

Answer 36

A) E. coli