Question

The stomach does not digest itself because

• A. Gastric mucosa is protected by thick layer of mucus
• B. Gastric mucosal cells are not digestible
• C. Gastric mucosal cells transport hydrogen ions out of the gastric mucosa
• D. Hydrogen ions are completely not at all neutralized by mucus

Answer 1

Answer: (A)

Correct answer is (a) Gastric mucosa is protected by thick layer of mucus