Multiple choice

Which of these statements about infection by bacteria in the gastrointestinal tract is FALSE?

  1. The acid in the stomach is sufficient to kill most gut pathogens.

  2. Helicobacter pylori is a commensal bacterium.

  3. Ammonia is produced by helicobacter. It helps this acid-sensitive bug to overcome the acid in the stomach. This ammonia provides protection against inflammation.

  4. Helicobacter is a rare infection.

  5. The bullous skin condition, dermatitis herpetiformis is linked to ulcerative colitis.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

On the contrary, ammonia is toxic to the mucosa.

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