
Contemporary Clinical Immunology and Serology 1st Edition by Kate Rittenhouse Olson,Ernesto DeNardin
Edition 1ISBN: 978-0135104248
Contemporary Clinical Immunology and Serology 1st Edition by Kate Rittenhouse Olson,Ernesto DeNardin
Edition 1ISBN: 978-0135104248 Exercise 20
Helicobacter pylori can survive in the stomach with its low pH because
A) it produces an enzyme called urease, which can cleave the stomach urea to produce ammonia and carbon dioxide, which ultimately produce bicarbonate that neutralizes the stomach acids
B) H. pylori can burrow into the mucosal layer of the stomach and can sense pH gradients, thus moving into areas that are more neutral in pH
C) it produces low pH products of its own, so it is accustomed to surviving in low pH
D) A and B
A) it produces an enzyme called urease, which can cleave the stomach urea to produce ammonia and carbon dioxide, which ultimately produce bicarbonate that neutralizes the stomach acids
B) H. pylori can burrow into the mucosal layer of the stomach and can sense pH gradients, thus moving into areas that are more neutral in pH
C) it produces low pH products of its own, so it is accustomed to surviving in low pH
D) A and B
Explanation
The bacterium can penetrate the mucosal ...
Contemporary Clinical Immunology and Serology 1st Edition by Kate Rittenhouse Olson,Ernesto DeNardin
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