Role of gut microbiome · NCERT Biology

Which gut microbe function aids mineral absorption?

  1. Production of bile salts
  2. Lowering intestinal pH
  3. Secretion of insulin
  4. Neutralizing stomach acid
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Correct answer: Lowering intestinal pH

Fermentation by gut microbes lowers intestinal pH. This enhances the absorption of minerals such as calcium and magnesium.

Difficulty: Medium Question 10 of 20

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