Question 1

Which of the following best describes the classification of bacteria by shape?

Accepted Answer

Bacteria are classified as cocci (round), bacilli (rod-shaped), and spirilla (spiral).

Question 2

A patient presents with a stiff neck, fever, headache, and confusion. Which bacterial infection is most likely based on these symptoms?

Accepted Answer

Meningitis

Question 3

Which of the following statements about antibiotics is correct?

Accepted Answer

Antibiotics are medications used to kill bacteria.

Question 4

A 20-year-old student is brought to campus clinic by his roommate with complaints of intense headache, light sensitivity, and neck stiffness. What is the most appropriate action?

Accepted Answer

Recognize possible meningitis and treat the 20-year-old with antibiotics.

Question 5

Which of the following is a common mode of transmission for E. coli O157:H7 infection?

Accepted Answer

Consumption of contaminated food, especially undercooked meat and produce.

Question 6

Which of the following equations best represents the exponential growth of bacteria under ideal conditions?

Accepted Answer

$$N = N_0$ e$$^{rt}$$

Question 7

Which of the following statements about tuberculosis (TB) is correct?

Accepted Answer

TB is a leading infectious disease worldwide, affecting more people in low-income countries.

Question 8

A patient develops a red, bull's-eye shaped rash after a tick bite and later experiences joint pain and neurological symptoms. Which infection is most likely?

Accepted Answer

Lyme disease

Question 9

Which of the following is a reason why antibiotic-resistant bacteria have emerged?

Accepted Answer

Overuse and misuse of antibiotics.

Question 10

Which of the following is NOT a symptom of pneumonia?

Accepted Answer

Muscle aches and joint pain

Question 11

Which of the following best describes the transmission of MRSA?

Accepted Answer

Skin-to-skin or contact with surfaces contaminated with bacteria.

Question 12

A patient is diagnosed with strep throat. What is the most likely mode of transmission for this infection?

Accepted Answer

Respiratory droplets

Question 13

Which of the following is a correct statement about E. coli O157:H7?

Accepted Answer

A harmful type of E. coli can cause illness if it enters the GI tract via contaminated food.

Question 14

Which of the following is a symptom of Rocky Mountain spotted fever?

Accepted Answer

Fever, headache, muscle aches, and rash

Question 15

Which of the following is the best strategy to prevent the spread of bacterial infections in a hospital setting?

Accepted Answer

Frequent hand washing and proper sanitation of surfaces.

Question 16

Which of the following is a plausible reason why a patient with tuberculosis must take multiple antibiotics for several months?

Accepted Answer

To prevent the development of antibiotic resistance and ensure all bacteria are killed.

Question 17

A patient presents with bloody diarrhea, stomach cramps, and vomiting after eating undercooked beef. Which bacterial infection is most likely?

Accepted Answer

E. coli O157:H7

Question 18

Which of the following is a correct statement about the transmission of tick-borne bacterial infections?

Accepted Answer

Ticks transmit bacteria directly by biting humans and pets.

Question 19

Which of the following is a critical step in the chain of infection for bacterial diseases?

Accepted Answer

A susceptible host must be exposed to the pathogen.

Question 20

Which of the following is a common misconception about antibiotics?

Accepted Answer

Antibiotics are effective against viral infections.

Pathogens & Diseases: Bacteria – Personal Health Study Notes

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