Pharmacy Study: Gram Negative Bacteria

Questions and Answers

What characteristic of the microorganism (M.O.) allows it to be transmitted through ice cream?

It is resistant to heat.

It is capable of forming spores.

It thrives in acidic environments.

It resists freezing. (correct)

Where does the microorganism primarily multiply within the body?

In the Peyer’s patches. (correct)

In the bloodstream.

In the skin.

In the liver.

What is the result of the M.O. passing into the blood through the lymphatics?

It causes immediate death.

It results in persistent bacteraemia. (correct)

It induces fever immediately.

It leads to acute inflammation.

Which of the following statements about the microorganism's pathogenesis is true?

Bacteraemia occurs for a duration of one week. Signup and view all the answers

What is the primary mechanism of transmission for the M.O. mentioned?

Frozen food products. Signup and view all the answers

After multiplying in Peyer’s patches, where does the microorganism go next?

Into the lymphatics leading to the bloodstream. Signup and view all the answers

What does the persistence of bacteraemia after the M.O. enters the blood indicate?

A prolonged infection. Signup and view all the answers

Which statement about the M.O.'s resistance is correct?

It is capable of surviving freezing conditions. Signup and view all the answers

Study Notes

Gram-Negative Bacteria

Significant species include Neisseria gonorrhoeae (Gonococcus), responsible for gonorrhea, and Neisseria meningitidis (Meningococcus), which causes meningitis.

Enteroinvasive E. coli (EIEC)

Associated with gastroenteritis and characterized by invasion of the large intestinal mucosa.
Symptoms include fever, cramps, watery diarrhea, progressing to dysentery with scant, bloody stools.
Commonly contracted from undercooked meat or contaminated hamburger, often referred to as "hamburger disease."

Urinary Tract Infections (UTIs)

The predominant agent causing UTIs, particularly in females, leading to chronic infections and potential complications such as premature delivery due to endotoxins.
The microorganism can withstand freezing conditions and has potential transmission routes, including through ice cream.
Pathogenesis involves bacterial multiplication in Peyer’s patches, entering the bloodstream via lymphatics, leading to a persistent bacteremia lasting up to one week.

Description

This quiz evaluates your understanding of Gram negative bacteria, focusing on their important characteristics. Students will discover key traits and examples of these bacteria essential for pharmacy studies. Test your knowledge and prepare for advanced topics in microbiology.