Adaptation of small intestine for absorption of food
- Long to allow food enough time for absorption
- Villi and microvilli increase surface area for absorption
- Well supplied by blood to carry away absorbed food so as to maintain diffusion gradient
- The villi have thin membrane to reduce diffusion gradient
- Villi have high concentration of mitochondria to provide energy for active transport.
- circular fold increase surface area for absorption
- Villi contain lacteal for absorption of fats
CATEGORIES Bio Questions and answers
TAGS Dr. Bbosa Science
