If an enzyme works best in an acid medium, in which of the following parts of the human gut is the pH best for

enzyme activities? In the

  • A ileum, pH 9.0
  • B stomach, pH 2.0
  • C duodenum, pH 7.0
  • D mouth cavity; pH 8.0

The correct answer is B. stomach, pH 2.0

No explanation given
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