How does H. pylori survive the acidic conditions of the stomach?
A) Producing urease, an enzyme that converts urea to ammonia, thereby creating an alkaline microenvironment.
B) Burrowing within the layer of mucus that coats the stomach lining.
C) Producing urease, an enzyme that converts ammonia to urea, thereby creating an alkaline microenvironment.
D) Producing urease, an enzyme that converts urea to ammonia, thereby creating an alkaline microenvironment AND burrowing within the stomach mucus layer.
E) Producing urease, an enzyme that converts ammonia to urea, thereby creating an alkaline microenvironment AND covering its flagella with protective sheaths.

Question

How does H. pylori survive the acidic conditions of the stomach?
A) Producing urease, an enzyme that converts urea to ammonia, thereby creating an alkaline microenvironment.
B) Burrowing within the layer of mucus that coats the stomach lining.
C) Producing urease, an enzyme that converts ammonia to urea, thereby creating an alkaline microenvironment.
D) Producing urease, an enzyme that converts urea to ammonia, thereby creating an alkaline microenvironment AND burrowing within the stomach mucus layer.
E) Producing urease, an enzyme that converts ammonia to urea, thereby creating an alkaline microenvironment AND covering its flagella with protective sheaths.

Quizplus · Accepted Answer

H. pylori survives the acidic conditions of the stomach by producing urease, an enzyme that converts urea to ammonia, thereby creating an alkaline microenvironment. It also burrows within the layer of mucus that coats the stomach lining. These two mechanisms allow the bacteria to protect itself from the low pH of the stomach and colonize the stomach lining.

How Does H