Hard

Certain vitamins, including vitamin K, are synthesised for our benefit by

Correct answer: B. bacteria living in the large intestine

  • A. the villi of the small intestine
  • B. bacteria living in the large intestine
  • C. the pancreas
  • D. the gall bladder

Explanation

The resident flora of the colon manufacture vitamin K and some B vitamins, which are absorbed there, one reason the gut microbiome matters. Human tissues cannot make vitamin K themselves.

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About Human Digestive System

The human digestive system breaks food into absorbable molecules through mechanical processing, enzyme action and chemical conditions along the alimentary canal. Questions cover the mouth, stomach, small and large intestines, liver, pancreas and associated secretions, including the digestion and absorption of carbohydrates, proteins, lipids, vitamins, minerals and water.

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