Q.

Acid secretion is characteristic of -

A. Buccal cavity
B. Stomach
C. Small intestine
D. Large intestine
Answer» B. Stomach
Explanation: The stomach is famous for its secretion of hydrochloric acid. It is secreted from parietal cells into the lumen where it establishes an extremely acidic environment. This acid is important for activation of pepsinogen and inactivation of ingested microorganisms such as bacteria.
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