Biology 5090 · O Level · Absorption and assimilation

Absorption and assimilation — practice question

The villi in the intestinal wall increase the surface area of the small intestine. In what way does this larger surface area aid the absorption of digested materials?

  • AIt makes peristalsis more efficient.
  • BMore mucus is produced for lubrication.
  • CMore starch and protein can be absorbed.
  • DThere is a greater chance of food molecules diffusing into the blood.

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