Multiple choice

_______ are absorbed into the villus cells by active transport in the small intestine.

  1. Glucose

  2. Amino-acids

  3. Fatty acids and glycerol

  4. Water and inorganic ions
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Amino-acids are absorbed into the villus cells by active transport and pass out of the opposite side by diffusion. In a fetus a newly born baby , some entire undigested proteins can be absorbed by pinocytosis. This is how babies are able to absorb some of their mother's antibodies from the milk. This can also happen to a small extent in adults.

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