Multiple choice

What is the function of villi?

  1. Assimilation of food

  2. Digestion of food

  3. Absorption of food

  4. Egestion of food

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Villi are finger-like projections in small intestine that massively increase surface area for absorption of nutrients like amino acids, monosaccharides and fatty acids. Digestion occurs primarily via enzymes in lumen; assimilation refers to cellular utilization; egestion is elimination of waste.